function Trim(nStr){return nStr.replace(/(^\s*)|(\s*$)/g, "");}
function isNull(obj,msg){
	if(msg!="Password")
		obj1=Trim(obj.value);
	else
		obj1=obj.value;
	if (obj1==""){
		alert("Please enter the " +msg);
		obj.focus();
		return true;
	}else
		return false;
}
function notEmail(obj,msg){
	var exp=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
	if (!exp.test(obj.value)){
		alert("Please enter valid "+msg);
		obj.focus();
		return true;
	}else
		return false;
}