//opens up pop up window to compare
function comparePopup(name){
  var url = "/scripts/site/" + name;
  window.open(url,
      "comparepopup",
	     "toolbar=yes,location=yes,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=800,height=600,left=0,top=0");
}
//swaps images
function swapImages(img, img1, img2, img1URL, img2URL)
{	
	if (img.src == 'http://bwi.com/images/system/delete.gif')
	{	comparePopup(img1URL);
		img.src=img2;
		img.alt='Add';
		img.value='Add';
	}else //add
	{	comparePopup(img2URL);
		img.src=img1;
		img.alt='Delete';	
		img.value='Delete';		 
	}
	return false;
}
//swaps images on preferred manufacturer
function swapImagesPreffered(img, img1, img2, img1URL, img2URL)
{	
	if (img.src == 'http://bwi.com/images/system/delete.gif')
	{	comparePopup(img1URL);
		img.src=img2;
		img.alt='Add';
		img.value='Add';
	}else //add
	{	comparePopup(img2URL);
		img.src=img1;
		img.alt='Delete';	
		img.value='Delete';		 
	}
	return false;
}