function isFileAllowed(fileField, allowedFileExtStr, errMsg)
{
    var allowedFileExt = allowedFileExtStr.split(",");
    filename = trim(fileField.value);
    if (filename == "")
    {
        return true;
    }

    liIndex = filename.lastIndexOf(".");
    var allowed = false;
    if (liIndex>0)
    {
        fileExtension = filename.substr(liIndex+1);
        for (var i=0; i<allowedFileExt.length; i++)
        {
            if (fileExtension.toLowerCase() == allowedFileExt[i].toLowerCase())
            {
                allowed = true;
                break;
            }
        }//for i
    }

    if (!allowed)
    {
        alert(errMsg);
    }

    return allowed;
}//isFileAllowed


//dFieldnames: String[][0] is the field name; String[][1] is the error msg
function checkAmountFields(dFieldnamesMsgs,decimalCount)
{
    var dField = null;
    var dMsg = null;
    for (var i=0; i<dFieldnamesMsgs.length; i++)
    {
        dField = eval(dFieldnamesMsgs[i][0]);
        if (dField != null)
        {
            dMsg = dFieldnamesMsgs[i][1];
            if(!isAmount(dField, dMsg, decimalCount))
            {
                return false;
            }
        }
    }//for i

    return true;
}//checkAmountFields


//dFieldnames: String[][0] is the field name; String[][1] is the error msg
function checkFloatFields(dFieldnamesMsgs)
{
    var dField = null;
    var dMsg = null;
    for (var i=0; i<dFieldnamesMsgs.length; i++)
    {
        dField = eval(dFieldnamesMsgs[i][0]);
        if (dField != null)
        {
            dMsg = dFieldnamesMsgs[i][1];
            if(!isFloat(dField, dMsg))
            {
                return false;
            }
        }
    }//for i

    return true;
}//checkFloatFields

//dFieldnames: String[][0] is the field name; String[][1] is the error msg
function checkIntegerFields(dFieldnamesMsgs)
{
    var dField = null;
    var dMsg = null;
    for (var i=0; i<dFieldnamesMsgs.length; i++)
    {
        dField = eval(dFieldnamesMsgs[i][0]);
        if (dField != null)
        {
            dMsg = dFieldnamesMsgs[i][1];
            if(!isNumeric(dField, dMsg))
            {
                return false;
            }
        }
    }//for i

    return true;
}//checkIntegerFields


//dFieldnames: String[][0] is the field name; String[][1] is the error msg
function checkMandatoryFields(dFieldnamesMsgs)
{
    var dField = null;
    var dMsg = null;
    for (var i=0; i<dFieldnamesMsgs.length; i++)
    {
        dField = eval(dFieldnamesMsgs[i][0]);
        if (dField != null)
        {
            dMsg = dFieldnamesMsgs[i][1];
            if(!checkMandatory(dField, dMsg))
            {
                return false;
            }
        }
    }//for i

    return true;
}//checkMandatoryFields

function trimFields(dFieldnames)
{
    var dField = null;
    for (var i=0; i<dFieldnames.length; i++)
    {
        dField = eval(dFieldnames[i]);
        if (dField != null)
        {
            dField.value = trim(dField.value);
        }
    }//for i

}//trimFields


function getRadioSelectionValue(fField, buttonCount, aMessage)
{
    if (buttonCount<2)
    {
        if (!fField.checked)
        {
            alert(aMessage);
            return "";
        }

        return fField.value;
    }

    for (var i=0; i<buttonCount; i++)
    {
        if (fField[i].checked)
        {
            return fField[i].value;
        }
    }//for i

    alert(aMessage);
    return "";
}//getRadioSelectionValue


function checkRadioSelection(fFieldield, buttonCount, aMessage)
{
    if (buttonCount<2)
    {
        if (!fFieldield.checked)
        {
            alert(aMessage);
            fFieldield.focus();
            return false;
        }

        return true;
    }


    for (var i=0; i<buttonCount; i++)
    {
        if (fFieldield[i].checked)
        {
            return true;
        }
    }//for i

    fFieldield[0].focus();
    alert(aMessage);
    return false;
}//checkRadioSelection

function checkSpecificSelection(aForm, fieldNamePrefix, aMessage)
{
    for (var i=0; i<aForm.elements.length; i++)
    {
        if (aForm.elements[i].type=="checkbox")
        {
            if (aForm.elements[i].name.indexOf(fieldNamePrefix)>=0)
            {
                if (aForm.elements[i].checked)
                {
                    return true;
                }
            }
        }
    }//for i

    alert(aMessage);
    return false;
} //checkSpecificSelection

function checkSelection(aForm, aMessage)
{
    for (var i=0; i<aForm.elements.length; i++)
    {
        if (aForm.elements[i].type=="checkbox")
        {
            if (aForm.elements[i].checked)
            {
                return true;
            }
        }
    }//for i

    alert(aMessage);
    return false;
} //checkSelection

// Check whether string s is empty.
function isEmpty(s)
{   return ((s == null) || (trim(s).length == 0))
}

// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function isNumeric(iText,message)
{
    if(iText.value != null && trim(iText.value) != '')
    {
        var sNumeric='0123456789';
        for (var i=iText.value.length-1;i>=0;i--)
        {
        	if (sNumeric.indexOf(iText.value.charAt(i),0)==-1)
        	{
        		alert(message);
        		iText.focus();
        		return false;
        	}//if
        }//for
    }
    return true;
}//isNumeric


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function isPositiveInteger(iText,message)
{
    if(iText.value != null && trim(iText.value) != '')
    {
        if(isNumeric(iText,message))
        {
            var val=parseInt(iText.value);
            if(val >0 )
            {
                return true;
            }
            else
            {
                alert(message);
        		iText.focus();
        		return false;
            }//if

        }//if
        else
        {
            return false;
        }
    }
    return true;
}//isPositiveInteger


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function isPhoneNumber(iText,message)
{
    if(iText.value != null && trim(iText.value) != '')
    {
    var sNumeric='0123456789()-+#*,extEXT ';
    for (var i=iText.value.length-1;i>=0;i--)
    {
    	if (sNumeric.indexOf(iText.value.charAt(i),0)==-1)
    	{
    		alert(message);
    		iText.focus();
    		return false;
     	}//if
    }//for

    var sValue=(iText.value).toUpperCase();
    var liE=sValue.indexOf("E");
    if(liE != -1)
    {
        if(sValue.length<liE+3 || sValue.substring(liE,liE+3) != "EXT")
        {
            alert(message);
    		iText.focus();
    		return false;
		}//if
    }//if

    var liT=sValue.indexOf("T");
    if(liT != -1)
    {
        if(sValue.length< 3 || sValue.substring(liT-2,liT+1) != "EXT")
        {
            alert(message);
    		iText.focus();
    		return false;
		}//if
    }//if

    if(iText.value.length<6)
    {
        return false;
    }//if
    }
    return true;
}//isNumeric


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function isFloat(iText,message)
{
    if(iText.value != null && trim(iText.value) != '')
    {
    //var numDecimalPlaces = 2; //max number of decimal places allowed
    var sNumeric='0123456789.';
    if(trim(iText.value)==".")
    {
        alert(message);
		iText.focus();
		return false;
    }

    var decimalPointCount=0;
    for (var i=iText.value.length-1;i>=0;i--)
    {
    	if (sNumeric.indexOf(iText.value.charAt(i),0)==-1)
    	{
    		alert(message);
    		iText.focus();
    		return false;
    	}//if
    	if(iText.value.charAt(i) == ".")
    	{
    	    decimalPointCount=decimalPointCount+1;
    	}
    }//for

    if(decimalPointCount>1)
    {
        alert(message);
		iText.focus();
		return false;
    }

    //check number of decimal
    if(decimalPointCount>0)
    {
        extract = iText.value.substr(iText.value.indexOf(".")+1);
        if (extract.length == 0)
        {
            alert(message);
    		iText.focus();
    		return false;
        }

        //if (extract.length>numDecimalPlaces)
        //{
            //alert("Value cannot exceed "+numDecimalPlaces+" decimal points.");
    		//iText.focus();
    		//return false;
        //}
    }
    }
    return true;
} //isFloat


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function isAmount(iText,message,decimalCount)
{
    if(iText.value != null && trim(iText.value) != '')
    {
        var sNumeric='0123456789.,';
        var liCount=0;
        if(trim(iText.value)==".")
        {
            alert(message);
    		iText.focus();
    		return false;
        }
        else
        {
            for (var i=iText.value.length-1;i>=0;i--)
            {
            	if (sNumeric.indexOf(iText.value.charAt(i),0)==-1)
            	{
            		alert(message);
            		iText.focus();
            		return false;
            	}//if
            	if(iText.value.charAt(i) == ".")
            	{
            	    liCount=liCount+1;
            	}
            }//for
            if(liCount>1)
            {
                alert(message);
        		iText.focus();
        		return false;
            }
        }//else

        var val=iText.value;
        if(val.indexOf(".") != -1)
        {
            //if(val.indexOf(".")<(val.length-(decimalCount+1)))

            if (val.substr(val.indexOf(".")+1).length>decimalCount)
            {
                alert(decimalAmountMsg);

        		iText.focus();
        		return false;
            }
        }
    }
    return true;
} //isAmount


// Parameter iText is the name of the Text Field.
function removeCommaFromAmount(iText)
{
    var amount=trim(iText.value);
    var amount1="";
    var commaIndex=0;
    while(amount.indexOf(',') != -1)
    {
        commaIndex=amount.indexOf(',');
        if(commaIndex==0)
        {
            amount=amount.substring(1);
        }
        else
        {
            if(amount.length>commaIndex)
            {
                amount1=amount.substring(commaIndex+1);
            }
            amount=amount.substring(0,commaIndex)+amount1;
        }//else

    }//while
    iText.value=amount;
}//removeCommaFromAmount


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function isDiscountFloat(iText,message)
{
    if(iText.value != null && trim(iText.value) != '')
    {
    var sNumeric='0123456789.';
    var liCount=0;
    if(trim(iText.value)==".")
    {
        alert(message);
		iText.focus();
		return false;
    }
    else
    {
        for (var i=iText.value.length-1;i>=0;i--)
        {
        	if (sNumeric.indexOf(iText.value.charAt(i),0)==-1)
        	{
        		alert(message);
        		iText.focus();
        		return false;
        	}//if
        	if(iText.value.charAt(i) == ".")
        	{
        	    liCount=liCount+1;
        	}
        }//for
        if(liCount>1)
        {
            alert(message);
    		iText.focus();
    		return false;
        }
        var liValue=0;
        var liIndex=0;
        liIndex=(iText.value).indexOf(".");

        if(liIndex != -1)
        {
            liValue=eval((iText.value).substring(0,liIndex)*1);

            if(liValue>99)
            {
                alert(message);
        		iText.focus();
        		return false;
            }//if
        }//if
        if(liIndex == -1)
        {
            liValue=eval((iText.value)*1);

            if(liValue>99)
            {
                alert(message);
        		iText.focus();
        		return false;
            }//if
        }//else

        if(liIndex != -1)
        {
            if((iText.value).length>(liIndex+3))
            {
                alert(message);
        		iText.focus();
        		return false;
            }
        }//if
    }//else
    }
    return true;
} //isDiscountFloat



// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
// return true if iText.value > 0.00
function isPositiveFloat(iText, message)
{
	if(iText.value != null && trim(iText.value) != '')
    {
	if(	!isFloat(iText, message)) return false;
	var x = eval(iText.value);
	if(x<=0)
	{
		alert(message);
		iText.focus();
		return false;
	}
	}
	return true;
}


function isValidEmailStr(emailStr, message)
{
    var i = 1;
    var sLength=trim(emailStr).length;

    if(sLength > 0)
    {

        if (emailStr.indexOf(" ")>-1)
        {
            alert(message);
            return false;
        }

        // look for @
        while ((i < sLength) && (emailStr.charAt(i) != "@"))
        { i++
        }

        if ((i >= sLength) || (emailStr.charAt(i) != "@"))
        {
            alert(message);
            return false;
        }
        else
        i += 2;

        // look for .
        while ((i < sLength) && (emailStr.charAt(i) != "."))
        { i++
        }

        // there must be at least one character after the .
        if ((i >= sLength - 1) || (emailStr.charAt(i) != "."))
        {
            alert(message);
            return false;
        }
        else
        return true;
    }//if

    return true;
}//isValidEmailStr


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function isEmail(iText,message)
{
    if (!isValidEmailStr(iText.value, message))
    {
        iText.focus();
        return false;
    }

    return true;
}//isEmail


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function checkMandatory(iText, message)
{

    if(iText.type == null ||
       iText.type == "text" ||
       iText.type == "password" ||
       iText.type == "hidden" ||
       iText.type == "file" ||
       iText.type =="" ||
       iText.type == "textarea" )
    {

        if (trim(iText.value).length<1)
        {
            if(iText.type == "hidden")
            {
                alert(message);
                return false;
            }
            else
            {
                alert(message);
                iText.focus();
                return false;
            }//else
        }//if
    }//if
    else
    {
        if (iText.options[iText.selectedIndex].value.length<1)
        {
            alert(message);
            iText.focus();
            return false;
        }
    }

    return true;
}//checkMandatory


// Parameter psFromDate is the from date in DD/MM/YYYY format as string.
// Parameter psToDate is the to date in DD/MM/YYYY format as string.
// Parameter message is the message to be displayed.
// true if psFromDate <= psToDate
function compareDate(psFromDate, psToDate,psMessage)
{
    dateFromObject = getDateObject(psFromDate);
	dateToObject = getDateObject(psToDate)

    if(dateToObject-dateFromObject<0)
    {
	   alert (psMessage);
       return false;
    }//if
    else
    {
        return true;
    }//else
}//compareDate


// true if psFromDate < psToDate
function isDateGreaterThan(psFromDate, psToDate,psMessage)
{
    dateFromObject = getDateObject(psFromDate);
	dateToObject = getDateObject(psToDate)

    if(dateToObject-dateFromObject<=0)
    {
	   alert (psMessage);
       return false;
    }//if
    else
    {
        return true;
    }//else
}//compareDate



// Parameter psDateString is the date in DD/MM/YYYY format as string.
function getDateObject(psDateString)
{
    var nSlashPos1=psDateString.indexOf("/",0);
    var nSlashPos2=psDateString.indexOf("/",nSlashPos1+1);

    var lsDay=eval(psDateString.substring(0,nSlashPos1)*1);
    var lsMon=eval(psDateString.substring(nSlashPos1+1,nSlashPos2)*1);
    var lsYear=eval(psDateString.substring(nSlashPos2+1,psDateString.length)*1);
    liMonth = Number(lsMon)-1;

    return new Date(lsYear,liMonth,lsDay,00,00,00);
}//getDateObject


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function dateDDMMYYYYvalidate(iText,message)
{

    var psDateString=iText.value;
    if(psDateString != null && trim(psDateString).length > 0)
    {
        var nSlashPos1=psDateString.indexOf("/",0);
        if(nSlashPos1==-1)
        {
            alert(message);
            iText.focus();
            return false;
        }//if

		if(nSlashPos1 != 2)
		{
			alert(message);
			iText.focus();
			return false;
		}

        var nSlashPos2=psDateString.indexOf("/",nSlashPos1+1);

		if(nSlashPos2 != 5)
		{
			alert(message);
			iText.focus();
			return false;
		}

        if(nSlashPos2==-1)
        {
            alert(message);
            iText.focus();
            return false;
        }//if
        var lsDay=eval(psDateString.substring(0,nSlashPos1)*1);
        if(!isNumericString(psDateString.substring(0,nSlashPos1)))
        {
            alert(message);
            iText.focus();
            return false;
        }
        var lsMon=eval(psDateString.substring(nSlashPos1+1,nSlashPos2)*1);
        if(!isNumericString(psDateString.substring(nSlashPos1+1,nSlashPos2)))
        {
            alert(message);
            iText.focus();
            return false;
        }
        var lsYear=eval(psDateString.substring(nSlashPos2+1,psDateString.length)*1);
        if(lsYear == null || lsYear<999 || lsYear>9999)
        {
            alert(message);
            iText.focus();
            return false;
        }
        if(!isNumericString(psDateString.substring(nSlashPos2+1,psDateString.length)))
        {
            alert(message);
            iText.focus();
            return false;
        }
        if(lsYear>=0)
        {
            if(lsMon==1 || lsMon==3 ||lsMon==5 ||lsMon==7 ||lsMon==8 ||lsMon==10 ||lsMon==12)
            {
                if(lsDay>0 && lsDay<32)
                {
                    return true;
                }//if day
                else
                {
                    alert(message);
                    iText.focus();
                    return false;
                }//else

            }//if month
            else if(lsMon==4 || lsMon==6 ||lsMon==9 ||lsMon==11)
            {
                if(lsDay>0 && lsDay<31)
                {
                    return true;
                }//if day
                else
                {
                    alert(message);
                    iText.focus();
                    return false;
                }//else

            }//if month
            else if(lsMon==2)
            {
                if(lsYear % 4 == 0)
                {
                    if(lsDay>0 && lsDay<30)
                    {
                        return true;
                    }//if day
                    else
                    {
                        alert(message);
                        iText.focus();
                        return false;
                    }//else
                }// if year
                else
                {
                    if(lsDay>0 && lsDay<29)
                    {
                        return true;
                    }//if day
                    else
                    {
                        alert(message);
                        iText.focus();
                        return false;
                    }//else
                }//else

            }//if month
            else
            {
                alert(message);
                iText.focus();
                return false;
            }
        }// if year
        else
        {
            alert(message);
            iText.focus();
            return false;
        }//else
    }//if

}//dateDDMMYYYYvalidate


// Parameter psString is the string to check.
function isNumericString(psString)
{
    var sNumeric='0123456789';
    for (var i=psString.length-1;i>=0;i--)
    {
    	if (sNumeric.indexOf(psString.charAt(i),0)==-1)
    	{
    		return false;
    	}//if
    }//for

    return true;
}//isNumericString




// Parameter sText is the string to trim.
function trim(sText)
{
    var nTxtLen=sText.length-1;
    for (var nStart=0;nStart<=nTxtLen && sText.charAt(nStart)==' ';nStart++);
    if (nStart>nTxtLen)
    	return '';
    for (var nEnd=nTxtLen;nEnd>=0 && sText.charAt(nEnd)==' ';nEnd--);
    return sText.substring(nStart,nEnd+1);
} //trim


// Parameter iText is the name of the Text Field.
// Parameter message is the message to be displayed.
function checkContactPerson(iText,message)
{
    iText.value=(iText.value).toUpperCase();
    lsString=iText.value;
    if((trim(lsString)).length >0)
    {
        liIndex=lsString.indexOf(",");
        if(liIndex==-1)
        {
            alert(message);
            iText.focus();
            return false;
        }//if
        else
        {
            lsLastName=lsString.substring(0,liIndex);
            if(lsLastName == null || trim(lsLastName)=="")
            {
                alert(message);
                iText.focus();
                return false;
            }
            lsFirstName=lsString.substring(liIndex+1);
            if(lsFirstName == null || trim(lsFirstName)=="")
            {
                alert(message);
                iText.focus();
                return false;
            }
        }//else

    }//if
    return true;
}//checkContactPerson


// Parameter iText is the name of the Text Field.
function changeToUpperCase(iText)
{
    iText.value=(iText.value).toUpperCase();
} //changeToUpperCase


function PercentageCheck(Num)
{

   var numlen = Num.value.length;
   var numtext =trim(Num.value);
   var i,j;
   var ctr=0;
   for( i=0,j=1; i<numlen && numtext != '' ; i++,j++)
   {
     var val = numtext.substring(i,j);
     if (val !=".")
     if(isNaN( val) ||  val == " ")
     {
       alert(" Please enter the Numeric Character ");
       Num.select();
       Num.focus();
       ctr=1;
       break;
     } //End if

   }// End for
   if (numtext >= 100)
   {
    alert(" Please enter the number < 100 ");
    Num.select();
    Num.focus();
   }

  var count = 0;
 for (ndx = 0; ndx < numtext.length; ndx++)
    if (numtext.charAt(ndx) == ".") count++;

 if (count > 1)
 {
   alert("Invalid number of decimals.");
   Num.select();
     Num.focus();
 } else
   {
    Num.value =numtext;
   }
}// End PercentageCheck

// Checks if time is in hh:mm
function isValidTime(timeStr, message)
{
    var timePat = /^(\d{2}):(\d{2})?$/;

    var matchArray = timeStr.match(timePat);
    if (matchArray == null)
    {
        alert(message);
        return false;
    }

    hour = matchArray[1];
    minute = matchArray[2];

    if (hour < 0  || hour > 23)
    {
        alert(message);
        return false;
    }

    if (minute < 0 || minute > 59)
    {
        alert(message);
        return false;
    }

    return true;
}//isValidTime



function mandatoryAnySelection(aForm, fieldNamePrefix, aMessage)
{
    var aField = null;
    for (var i=0; i<aForm.elements.length; i++)
    {
        aField = aForm.elements[i];
        if (aField.name.indexOf(fieldNamePrefix)>=0)
        {
            if (aField.selectedIndex >= 0)
            {
                return true;
            }
        }
    }//for i

    alert(aMessage);
    return false;
}//mandatoryAnySelection


function mandatoryAllSelection(aForm, fieldNamePrefix, aMessage)
{
    var aField = null;
    for (var i=0; i<aForm.elements.length; i++)
    {
        aField = aForm.elements[i];
        if (aField.name.indexOf(fieldNamePrefix)>=0)
        {
            if (aField.selectedIndex < 0)
            {
                aField.focus();
                alert(aMessage);
                return false;
            }
        }
    }//for i

    return true;
}//mandatoryAllSelection



function validYear(iText, message)
{
    if (isNaN(iText.value))
    {
        alert(message);
        iText.focus();
        return false;
    }

    var intYear=eval(iText.value*1);
    if(intYear == null || intYear<999 || intYear>9999)
    {
        alert(message);
        iText.focus();
        return false;
    }

    return true;
}//validYear


function roundToNdp(X, N) {
    var T = Number("1e" + N);
    return Math.round(X * T) / T;
}