function doAjax(strURL,strPostData,strObj,method,strProgressMessage,nTime,fn) {

    var xmlHttpReq = false;

    var self = this;

	var msg="";

    // Mozilla/Safari

	

	www=(window.location.href.toLowerCase().indexOf("//www.")>0)?"http://www.":"http://";

	strURL=strURL.replace("http://",www);

	updateMessage(strObj,strProgressMessage);



    if (window.XMLHttpRequest) {

        self.xmlHttpReq = new XMLHttpRequest();

    }

    // IE

    else if (window.ActiveXObject) {

        self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");

    }

    self.xmlHttpReq.open(method, strURL, true);

    self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

    self.xmlHttpReq.onreadystatechange = function() {

		

        if (self.xmlHttpReq.readyState == 4) 

		{

			

			

			msg=(strObj+"|"+self.xmlHttpReq.responseText).split("|");

			for (i=0;i<msg.length;i=i+2)

			{

				updateMessage(msg[i],msg[i+1]);

			}

			

			switch(fn)

			{

				case "renderProductOptions":				

				

					removeItemRow();

					updateMessage(strObj,"Inventory updated successfully!");

					renderProductOptions(self.xmlHttpReq.responseText);

					

					break;

				case null:

					break;

			}

			

			if (nTime>0) setTimeout("hide('"+strObj+"');",nTime);

        }

		else

		{

			//alert(self.xmlHttpReq.readyState);

		}

    }

    self.xmlHttpReq.send(strPostData);

}



function removeItemRow()

{

  var tbl = document.getElementById('tblGroups');

  var lastRow = tbl.rows.length;

  var iteration = lastRow;

  for (i=3;i<iteration;i++)

  {

  	tbl.deleteRow(tbl.rows.length-1);

	

  }



}





function updateMessage(obj,str)

{

	show(obj);	
	
	if(document.getElementById(obj))
	document.getElementById(obj).innerHTML=str;

}



function showHide(id)

{

	if (document.getElementById(id).style.display=='')

		document.getElementById(id).style.display='none';

	else

		document.getElementById(id).style.display='';

		

}

function show(id)

{

		if(document.getElementById(id))
		document.getElementById(id).style.display='block';

		

}

function hide(id)

{
		if(document.getElementById(id))
		document.getElementById(id).style.display='none';

}