jQuery.extend({isEmpty:function(vl){return $.trim(vl).length==0;},isEmail:function(vl){var pattern=/^(([a-zA-Z\-_0-9\.]+)@[a-zA-Z\-_0-9]+\.([a-zA-Z]+(\.)?)?[a-zA-Z]+)$/;return pattern.test($.trim(vl));},isDate:function(vl){var pattern=/^((\d{4})(-)([1-9]|0[1-9]|1[0-2])(-)([1-9]|0[1-9]|[12][0-9]|3[01])|([1-9]|0[1-9]|1[0-2])(\/)([1-9]|0[1-9]|[12][0-9]|3[01])(\/)(\d{4})|(\d{4})(\/)([1-9]|0[1-9]|1[0-2])(\/)([1-9]|0[1-9]|[12][0-9]|3[01]))$/;return pattern.test($.trim(vl));},isInt:function(vl){var pattern=/^[0-9]*$/;return pattern.test($.trim(vl));},isZInt:function(vl){var pattern=/^[0-9]*[1-9][0-9]*$/;return pattern.test($.trim(vl));},isUserName:function(vl){var pattern=/^[a-zA-Z0-9]{1}([a-zA-Z0-9]|[_]){3,19}$/;return pattern.test($.trim(vl));},isPassword:function(vl){var pattern=/^[\w~!@#$%^&*()_+]{6,16}$/;return pattern.test($.trim(vl));},BindBtn:function(){var btns=$(".btn");for(var i=0;i