function chkEmpty(obj,alarm){
	if($.trim(obj.val()).length < 1){
		obj.focus();
		alert(alarm);
		return true;
	}

	return false;
}

$(document).ready(function() {	
	// validate signup form on keyup and submit
	$("#contact_us").validate({
		rules: {
			uname: "required",
			company: "required",
			mobile: "required",
			address: "required",
			comment: "required",
			email: {
				required: true,
				email: true
			}
			
		},
		messages: {
			uname: "Please enter your full name",
			company: "Please enter your company name",
			mobile: "Please enter your mobile number",
			address: "Please enter your address",
			comment: "Please enter your comment/question",
			email: "Please enter a valid email address"
		}
	});
	
	$('#membership').submit(function(){
		if(chkEmpty($('#username'),'Please enter your ID.')) return false;
		if(chkEmpty($('#password'),'Please enter your password.')) return false;
		return true;
	});
});