var xmlhttp;

function showArtist(str,si)
{
	// create XMLHttp
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
  // obtain the data from php call
var url="artist.php?artist="+str+"&total=10&start_index="+si;
url = url.replace(/\s/g, "/");
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}
// if state change
function stateChanged()
{
if (xmlhttp.readyState==4)
{
	// dynamic update to picBox
document.getElementById("picBox").innerHTML=xmlhttp.responseText;
}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}