Javascript Dabling...;

Wondering if This is Correct... function go(number) { var str = "style=number"; var url = "http://boxxer.mooo.com/index.php";// No question mark needed xmlReq.open("POST",url,true); xmlReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8"); xmlReq.send(str); } Then In a Div onclick="go(1)"