<div id="page"> <select name="select1" id="select-type"> <option value="0">请选择</option> <option value="1">企业</option> <option value="2">产品</option> </select> </div>

QueryString = { data: {}, Initial: function () { var aPairs, aTmp; var queryString = new String(window.location.search); queryString = queryString.substr(1, queryString.length); //remove "?" aPairs = queryString.split("&"); for (var i = 0; i < aPairs.length; i++) { aTmp = aPairs[i].split("="); this.data[aTmp[0]] = aTmp[1]; } }, GetValue: function (key) { return this.data[key]; } } $(function () { //初始化 QueryString.Initial(); var type = QueryString.GetValue("type"); if (typeof (type) != "undefined") { $("#select-type").val(type); } $("#select-type").bind("change", function () { var row = $(this).find("option:selected").val(); //alert(row); if (row == 1) location.href = "?type=" + row; if (row == 2) location.href = "?type=" + row; }); });