var xmlHttp


function getBase()
{
	  var baseTag = document.getElementsByTagName("base");
	  for(var i=0; i<baseTag.length; i++)
	  {
			var baseId = baseTag[i].id;
			var baseHref = baseTag[i].href;
			//alert("ID = "+ baseId +"\nhref = "+ baseHref);
	  }
	  return baseHref;
}

function changePicture(str,str2)
{ 
	xmlHttp=GetXmlHttpObject();
	
	if (xmlHttp==null)
	 {
		alert ("Browser does not support HTTP Request");
		return;
	 } 

   //if (str2==null)
  // {
  
			var url=getBase();
			url= url+ "changePicture.php";  
  // }
  // else
   //{
   //   var str = str2.value;
	 // var url="changeshirt2.php";  
   //}     
	
	url = url + "?picname="+str;  
	//if (theqty==null)
	//{
	//    url=url+"?action="+str+"&id="+str2;
	//}
	//else if (extra==null)
	//{
	//    var qty=theqty.value;    
	//    url=url+"?action="+str+"&id="+str2+"&quantity="+qty;
	//}
	//else 
	//{
		//var qty=theqty.value;
////        var extracode=extra.value;
	//    url=url+"?action="+str+"&id="+str2+"&code="+extracode+"&quantity="+qty;
//    }
     changePicture.el = str2;
	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(changePicture.el).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;
	}