Passing querystring variable to function

Giganews Newsgroups
Subject: Passing querystring variable to function
Posted by:  Chris (matchett1…@googlemail.com)
Date: Fri, 30 Nov 2007

How do I take a querystring variable from a link and pass it to the
following code (function shown below)?

For example, concatenating the 77 from 'myfile.php?uniqueid=77' with
the string 'id' to get

if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{
document.getElementById("id77").innerHTML=xmlHttp.responseText
}

Many thanks,

Chris

var xmlHttp

function showUser(str)
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}
var url="/~jonanna/ajax/getuser.php"
url=url+"?q="+str
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("txtHint").innerHTML=xmlHttp.responseText
}
}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;
}

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