//扩展获取url
$.extend({
getUrlVars: function ()
{
var vars = [], hash;
var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
for (var i = 0; i < hashes.length; i++)
{
hash = hashes[i].split('=');
vars.push(hash[0]);
vars[hash[0]] = hash[1];
}

return vars;
},
getUrlVar: function (name)
{
return $.getUrlVars()[name];
}

});