var xmlHttp;
function showHint(f_ro,f_rc,f_w,f_k)
{

//if (f_ro.length==0)
  //{
//	document.getElementById("result").innerHTML="No Ro";
  //return;
  //}
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url="calc_rtd.php";
url=url+"?f_ro="+f_ro;
url=url+"&f_rc="+f_rc;
url=url+"&f_w="+f_w;
url=url+"&f_k="+f_k;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function stateChanged()
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {
 document.getElementById("result").innerHTML=xmlHttp.responseText;
 //document.getElementById(objHint).value=xmlHttp.responseText;
	//var x=xmlHttp.responseText;
	//retval=alert(x.substring(0,x.indexOf("/",0))+"."+x.substring(x.indexOf("/",0)+1,x.lastIndexOf("/")-1)+"."+x.substring(x.lastIndexOf("/")+1));
	//document.getElementById(x.substring(0,x.indexOf("/",0))).innerHTML=x.substring(x.lastIndexOf("/")+1);
	//document.getElementById("fideid"+x.substring(4,x.indexOf("/",0))).value=x.substring(x.indexOf("/",0)+1,x.lastIndexOf("/"));
	//document.getElementById("hintid"+x.substring(4,x.indexOf("/",0))).innerHTML=x.substring(x.indexOf("/",0)+1,x.lastIndexOf("/"));
  	//retval=alert(x.substring(x.indexOf("/",0)+1,x.lastIndexOf("/")));
  }
}function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 // Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}
   function LTrim(str){
        var whitespace = new String(" \t\n\r");

        var s = new String(str);

        if (whitespace.indexOf(s.charAt(0)) != -1) {
            var j=0, i = s.length;
            while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
                j++;
            s = s.substring(j, i);
        }

        return s;
}