function Trim(nStr){return nStr.replace(/(^\s*)|(\s*$)/g, "");}
function isNull(obj,msg){
	if(msg!="Password")
		obj1=Trim(obj.value);
	else
		obj1=obj.value;
	if (obj1==""){
		alert("Please enter the " +msg+".");
		obj.focus();
		return true;
	}
	else
		return false;
}
function validate(aStr, type) {
	var expr = "";
	switch (type){
	case "date" : expr = /^[0-2]{0,1}([1-9]|30|31)\/0{0,1}([0-9]|11|12)\/[0-9]{4,4}$/; break;
	case "email" : expr = /^(.)+@{1,1}((.)+\.(.)+)+$/; break;
	case "integer" : expr = /^[0-9]*$/; break;
	case "decimal" : expr = /^[0-9]*\.{0,1}[0-9]*$/; break;
	case "username" : expr = /^([a-z]|[A-Z]|[0-9])*$/; break;
	case "password" : expr = /^([a-z]|[A-Z]|[0-9])*$/; break;
	case "string" : expr = /^([a-z]|[A-Z]|[ ]|[.])*$/; break;
	case "phonenumber" : expr = /^([0-9]|[ ]|[+]|[-])*$/; break;
	}
	if(expr != "")
		return expr.test(Trim(aStr));
	else
		return false;
}