var xmlHttp

function requestGigs()
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
  {
  alert ("Browser does not support HTTP Request")
  return
  } 
var url="php/getgigs.php"
url=url+"?q="
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=updateGigBar 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
} 


function updateGigBar() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("gigbar").innerHTML=xmlHttp.responseText; 
 } 
}