PHP Jump ändert die Browseradresse nicht

function createXMLHttpRequest(){
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}
function sendRequest(url){
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    XMLHttpR.setRequestHeader("Content-Type","text/html;charset=utf-8");
    XMLHttpR.onreadystatechange = processResponse;
    XMLHttpR.send(null);
}
function processResponse(){
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}

<iframe id="frame3d" name="frame3d" frameborder="0" width="100%" scrolling="auto"
 style="margin-top: -4px;" onload="this.style.height=document.body.clientHeight-84"
 height="100%" src="http://www.5202m.com" mce_src="http://www.baidu.com">
</iframe>