var xmlHttp;
  var xvar;
  var stat;
  
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 togglePic(id,offer)
  {  
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	  {
	  alert ("Your browser does not support AJAX!");
	  return;
	  }

    xmlHttp.onreadystatechange=function()
      {
      if(xmlHttp.readyState==4)
        {
			var xvar=xmlHttp.responseText;
			//alert(xvar);
			var obj=document.getElementById("pic_div");
			url="prod_images/"+xvar;
			obj.innerHTML="<img src='resize.php?pic="+url+"&w=166&h=183"+offer+"' />";
        }
      }
	  //alert("getglassopt.php?id="+id);
    var url="imageChange.php";
	var params = "imgid="+id;
	xmlHttp.open("POST", url, true);
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", params.length);
	xmlHttp.setRequestHeader("Connection", "close");
	xmlHttp.send(params); 
}