function disableButton(el, n) {

document.getElementsByName(el)[n].style.opacity = '0.35';
document.getElementsByName(el)[n].style.filter = 'alpha(opacity=35)';
document.getElementsByName(el)[n].disabled = true;

}

function displayCart(element, index) {

  var itemPrice;
  if (index==0)
  {
    	  itemPrice = parseFloat(element);
	  itemPrice = Math.round(itemPrice*100)/100;
	  document.getElementById("totalPrice").innerHTML = itemPrice;
  }
  else
  {
           document.getElementsByName("jsimgbutton")[element].style.backgroundPosition = "-" + 125 * 2 + "px 0px";
  }
}

function cartAjax(n,p,u,s,change) {

	if(document.getElementsByName("jsimgbutton")[n].disabled) return

	 document.getElementById('ajaxLoader').style.display = 'block';
	 var itemPrice;
	 var el;

	 var q; 
    	 try {  q = new ActiveXObject('Msxml2.XMLHTTP');   }
         catch (e) 
    	 {
        	try {   q = new ActiveXObject('Microsoft.XMLHTTP');    }
        	catch (e2) 
          	{
          	   try {  q = new XMLHttpRequest();     }
          	   catch (e3) { q = false;   }
        	}
     	  }

	if(change) q.onreadystatechange=function(){ if(q.readyState==4 && q.status==200) change(q.responseText); };

	if (p==-1)
	{

	  u = u + '&nocache=' + Math.floor(Math.random()*9999)
	  q.open('GET',u,s?1:0);
	  q.send(null);
	  itemPrice = parseFloat(q.responseText);
	  itemPrice = Math.round(itemPrice*100)/100;
	  document.getElementById("totalPrice").innerHTML = itemPrice;

		var b = q.responseText;
		var cartIds = new Array();
		cartIds = b.split(',');

		//cartIds.forEach(displayCart);  //removed - mozilla only - ie doesn't support forEach ACK!

		for (var i = 0; i < cartIds.length; i++) {
		  displayCart(cartIds[i], i);
    		}

		if (itemPrice == 0)
		{
	  	document.getElementById('checkOutEmpty').style.display = 'block';
	   	document.getElementById('checkOut').style.display = 'none';
		}
		else
		{
	  	 document.getElementById('checkOutEmpty').style.display = 'none';
	   	document.getElementById('checkOut').style.display = 'block';
		}

	  document.getElementById('ajaxLoader').style.display = 'none';
	  return

	}

	if (p=='view')
	{
	
	  u = u + '&nocache=' + Math.floor(Math.random()*9999)
	  q.open('GET',u,s?1:0);
	  q.send(null);
	  
	  if (document.getElementById("viewCart").innerHTML == '')
	  {
	    document.getElementById('viewCart').style.display = 'none';
	    document.getElementById("viewCart").innerHTML = q.responseText;
	    Effect.Appear('viewCart');
	  }
	  else
	  {
	    document.getElementById("viewCart").innerHTML = q.responseText;
	  }
	  
	  document.getElementById('ajaxLoader').style.display = 'none';

	  return

	}


	if (p=='coupon')
	{

	  u = u + '&nocache=' + Math.floor(Math.random()*9999)
	  q.open('GET',u,s?1:0);
	  q.send(null);

	  u = 'buy.asp?p=view'
	  q.open('GET',u,s?1:0);
	  q.send(null);
	  document.getElementById("viewCart").innerHTML = q.responseText;
	  document.getElementById('ajaxLoader').style.display = 'none';

	  return

	}

	if (document.getElementsByName("jsimgbutton")[n].style.backgroundPosition == '-250px 0px')
	{
 	   //already clicked

           if (p=='increase')
	   {
	  
	   u = u + '&q=' + document.getElementById('qty').value;
	   u = u + '&nocache=' + Math.floor(Math.random()*9999)
	   q.open('GET',u,s?1:0);
	   q.send(null);

	   el = 'prodDetails' + n

	   document.getElementsByName("jsimgbutton")[n].style.backgroundPosition = "-" + 125 * 2 + "px 0px";
	   itemPrice = parseFloat(q.responseText);
	   itemPrice = Math.round(itemPrice*100)/100;
	   document.getElementById("totalPrice").innerHTML = itemPrice;
	   document.getElementById('prodThumb').style.display = 'block';
	   document.getElementById("prodThumb").src = "/images/thumb.asp?p=" + p;
	   document.getElementById('prodThumbLink').style.display = 'block';
 	   document.getElementById("prodThumbLink").href = "/images/thumb.asp?zoom=yes&p=" + p;
	   document.getElementById('prodDetails').style.display = 'block';
	   document.getElementById("prodDetails").innerHTML = document.getElementById(el).value;

           }
           else
           {

	   u = u + '&a=remove';
           u = u + '&nocache=' + Math.floor(Math.random()*9999)
	   q.open('GET',u,s?1:0);
	   q.send(null);

	   document.getElementsByName("jsimgbutton")[n].style.backgroundPosition = "0px 0px";
	   itemPrice = parseFloat(q.responseText);
	   itemPrice = Math.round(itemPrice*100)/100;
	   document.getElementById("totalPrice").innerHTML = itemPrice;
           document.getElementById("prodThumb").src = "/images/spacer.gif";
	   document.getElementById('prodThumbLink').style.display = 'none';
	   document.getElementById("prodDetails").innerHTML = '';
	   document.getElementById('prodDetails').style.display = 'none';

	   }

	}
	else
	{
	   u = u + '&q=' + document.getElementById('qty').value;
	   u = u + '&nocache=' + Math.floor(Math.random()*9999)
	   q.open('GET',u,s?1:0);
	   q.send(null);

	   el = 'prodDetails' + n

	   document.getElementsByName("jsimgbutton")[n].style.backgroundPosition = "-" + 125 * 2 + "px 0px";
	   itemPrice = parseFloat(q.responseText);
	   itemPrice = Math.round(itemPrice*100)/100;
	   document.getElementById("totalPrice").innerHTML = itemPrice;
	   document.getElementById('prodThumb').style.display = 'block';
	   document.getElementById("prodThumb").src = "/images/thumb.asp?p=" + p;
	   document.getElementById('prodThumbLink').style.display = 'block';
 	   document.getElementById("prodThumbLink").href = "/images/thumb.asp?zoom=yes&p=" + p;
	   document.getElementById('prodDetails').style.display = 'block';
	   document.getElementById("prodDetails").innerHTML = document.getElementById(el).value;
	}

	if (itemPrice == 0)
	{
	   document.getElementById('checkOutEmpty').style.display = 'block';
	   document.getElementById('checkOut').style.display = 'none';
	}
	else
	{
	   document.getElementById('checkOutEmpty').style.display = 'none';
	   document.getElementById('checkOut').style.display = 'block';
	}
	
	document.getElementById('qty').value = 1;
	document.getElementById('ajaxLoader').style.display = 'none';

}