var isLoaded = false;
function PreLoadImage() { 
	var l = PreLoadImage.arguments.length 
    for (var i = 0; i < l; i++) 
	{
		this[i+1] = new Image();
		this[i+1].src = PreLoadImage.arguments[i];
	}	 
  isLoaded = true;
}

function ShowImage(name,img)
{
	 document.images[name].src = img
   	 return 1;
}