function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) {return false;}
    }
    // All characters are numbers.
    return true;
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12);
	var pos1=dtStr.indexOf(dtCh);
	var pos2=dtStr.indexOf(dtCh,pos1+1);
	var strDay=dtStr.substring(0,pos1);
	var strMonth=dtStr.substring(pos1+1,pos2);
	var strYear=dtStr.substring(pos2+1);
	strYr=strYear;
	if (strDay.charAt(0)=="0" && strDay.length>1) {strDay=strDay.substring(1);}
	if (strMonth.charAt(0)=="0" && strMonth.length>1) {strMonth=strMonth.substring(1);}
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) {strYr=strYr.substring(1);}
	}
	month=parseInt(strMonth,10);
	day=parseInt(strDay,10);
	year=parseInt(strYr,10);
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy");
		return false;
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month");
		return false;
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("This date is invalid, please reselect");
		return false;
	}
	if (strYear.length != 4 || year===0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear);
		return false;
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))===false){
		alert("Please enter a valid date");
		return false;
	}
return true;
}


function CheckNumeric(e)
{
	var key; var keychar; var reg;
	
	if(window.event) {	// for IE, e.keyCode or window.event.keyCode can be used
		key = e.keyCode; 
	}
	else if(e.which) {	// netscape
		key = e.which; 
	}
	else {	// no event, so pass through
		return true;
	}

	if ((key>47 && key<58) || (key==8))
	{
	return key;
	}
	else 
	{
	return false;
	}
}

function CheckEmail(e)
{
	var key; var keychar; var reg;
	
	if(window.event) {	// for IE, e.keyCode or window.event.keyCode can be used
		key = e.keyCode; 
	}
	else if(e.which) {	// netscape
		key = e.which; 
	}
	else {	// no event, so pass through
		return true;
	}
		if ((key>47 && key<58) || (key>64 && key<91) || (key>96 && key<123) || (key==45) || (key==46) || (key==64) || (key==8))
	{
	return key;
	}
	else 
	{
	return false;
	}
}


function CheckAlphaNumsPlus(e)
{
	var key; var keychar; var reg;
	
	if(window.event) {	// for IE, e.keyCode or window.event.keyCode can be used
		key = e.keyCode; 
	}
	else if(e.which) {	// netscape
		key = e.which; 
	}
	else {	// no event, so pass through
		return true;
	}
		if ((key>47 && key<58) || (key>64 && key<91) || (key>96 && key<123) || (key==39) || (key==45) || (key==32) || (key==44) || (key==46) || (key==13) || (key==47) || (key==8) || (key==33) || (key==63) || (key==64) || (key==46))
	{
	return key;
	}
	else 
	{
	return false;
	}
}