function Trim(s) 
{
	return s.replace(/^\s+/g, '').replace(/\s+$/g, '');
}

function checkValidAlphanumeric(events)
{ 	
	val = events.charCode? events.charCode :events.keyCode;
	if ((val > 0 && val < 48 && val != 8 && val != 9) || (val > 57 && val < 65) || (val > 90 && val < 97) || (val > 122 && val < 127)) 
	{
		return (false);
	}
	return true;
}
function removespace(e)
{
	if(!e)
     	e = window.event;
    	if(e.keyCode)
		val = e.keyCode;
    else
		val = e.charCode;
	if(val == "32")
		return false;
	else
		return true;
}

function checkValid_Numberonly(events)
{
	val = events.charCode? events.charCode :events.keyCode;
	if(val == 8 || val == 13 )
	 	return true;
	if(val<48)
	  return false;
	if(val>57)
	  return false;
	return true;
}

function isValidEmail_withoutalert(emailStr) {
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			return false;
		}
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			return false;
		}
	}
	if (user.match(userPat)==null) {
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				return false;
	   		}
		}
		return true;
	}
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			return false;
	   }	
	}
	if (checkTLD && domArr[domArr.length-1].length!=2 && 
		domArr[domArr.length-1].search(knownDomsPat)==-1) {
		return false;
	}
	if (len<2) {
		return false;
	}	
	return true;
}