Javascript获取地址参数
修改地址后的参数：
<script>
function getNewUrl(oldurl,paramname,pvalue){
var reg = new RegExp("(\\?|&;amp;)" paramname "=([^&;amp;]*)(&;amp;|$)","gi");
var t=oldurl.match(reg)[0];
var retxt=t.substring(0,t.indexOf("=") 1) pvalue;
if(t.charAt(t.length-1)=='&;amp;') retxt ="&;amp;";
return oldurl.replace(reg,retxt);
}
alert(getNewUrl("
http://servername/virturlpath/index.asp?p1=123&;amp;p2=aa&;amp;p3=hh&;amp;p4=1","p4","cxz"));
</script>
获取地址参数：
<script>
function aa(source, name)
{
var reg = new RegExp("(^|\\?|&;amp;)" name "=([^&;amp;]*)(
[url=file://\\s|&;amp;|$]\\s|&;amp;|$[/url]
)", "i");
if (reg.test(source)) return RegExp.$2; return "";
};
alert(aa("
http://community.csdn.net/Expert/topic/4223/4223277.xml?temp=6.502932E-02", "temp"))
</script>
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