function urlcheck(){
	
}
function rate_topic(turl,group){
	var myexp = /^(((ht|f)tp(s?))\:\/\/)?([\w-]+\.)+[\w-]+(\/[\w-./?%&=]*)?$/
	var regex = new RegExp(myexp);
	var result;
     var s = turl.value;
     if (s.length > 0)
     {
          result = regex.test(s);
          if (result == false)
          {
               alert("Please enter a valid url format.\n\r i.e. http://www.address.com or www.address.com");
               turl.focus();
               turl.select();
               return false;
          }else{
			
			xmlHttp=GetXmlHttpObject()
		    if (xmlHttp==null){
		        alert ("Browser does not support HTTP Request")
		        return
		    } 
		    var url="./include/rate.php"
		    url=url+"?turl="+turl.value
		    url=url+"&group="+group
		    xmlHttp.onreadystatechange=stateChanged 
		    xmlHttp.open("GET",url,true)
		    xmlHttp.send(null)
		}
	}
}
function stateChanged(){ 
    if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
        document.getElementById("txtResult").innerHTML=xmlHttp.responseText 
    } 
}
function GetXmlHttpObject(handler){ 
    var objXMLHttp=null
    if (window.XMLHttpRequest){
        objXMLHttp=new XMLHttpRequest()
    }
    else if (window.ActiveXObject){
        objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
    }
    return objXMLHttp
}