jquery

用js有三种获取地址栏参数的方法：
方法一：



<script. type="text/javascript"><!--String.prototype.getQuery = function(name) {　　var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");　　var r = this.substr(this.indexOf("\?")+1).match(reg);　　if (r!=null) return unescape(r[2]); return null;}var strHref = "www.cnlei.org/index.htm?a=aaa&b=bbb&c=ccc";alert(strHref.getQuery("a"));alert(strHref.getQuery("b"));alert(strHref.getQuery("c"));//--></script>

方法二：
<script. type="text/javascript">function getUrlPara(paraName){var sUrl = location.href;var sReg = "(?:\\?|&){1}"+paraName+"=([^&]*)"var re=new RegExp(sReg,"gi");re.exec(sUrl);return RegExp.$1;}//应用实例：test_para.html?a=11&b=22&c=33alert(getUrlPara("a"));alert(getUrlPara("b"));</script>
方法三：
<script. type="text/javascript"><!--function Request(strName){var strHref = "www.cnlei.org/index.htm?a=aaa&b=bbb&c=ccc";var intPos = strHref.indexOf("?");var strRight = strHref.substr(intPos + 1);var arrTmp = strRight.split("&");for(var i = 0; i < arrTmp.length; i++) {var arrTemp = arrTmp[i].split("=");if(arrTemp[0].toUpperCase() == strName.toUpperCase()) return arrTemp[1];}return "";}alert(Request("a"));alert(Request("b"));alert(Request("c"));//--></script>