// email validation
function ValidateEmail(email) {
	var regexp = /^[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z][ \t]*?$/
	return (email.indexOf(".") > 2) && (email.indexOf("@") > 0) && (regexp.test(email)) && (email.indexOf(".") < parseInt(email.length) - 2);
}
function chkEmail(source, args) {
	var CommaSep = $("#ctl00_ShareDesignControl_tbReceiverEmailAddress").val();
	if (CommaSep.indexOf(",") > -1) {
		var wordArray = CommaSep.split(',');
		var isValid = true;
		$.each(wordArray, function() {
			isValid = isValid && ValidateEmail(this);
		});
		if (wordArray.Length > 5) {
			var multitxt = $("#multifld").val();
			$("#ctl00_ShareDesignControl_MultipleEmailValidator").text(multitxt);
			args.IsValid = false;
			return;
		}
	} else {
		isValid = ValidateEmail(CommaSep)
	}
	if (!isValid) {
		var invalidtxt = $("#invalidfld").val();
		$("#ctl00_ShareDesignControl_MultipleEmailValidator").text(invalidtxt);
		args.IsValid = false;
		return;
	} else {
		$("#ctl00_ShareDesignControl_MultipleEmailValidator").text("");
		args.IsValid = true;
		return;
	}
}