var pics = new Array()
var picList = new Array();

function preload(php_var)
{
  picList = php_var.split(',');

  for (i = 0; i < picList.length; i++)
  {
  	pics[i] = new Image();
  	pics[i].src = picList[i];
  	//document.write('<img src="' + pics[i].src + '" />');
  }
  //alert(document.images.length);
}

// swapImage
function swapImage(imgName,swapImg)
{
//alert(swapImg);
//alert(document.images[imgName].src);
//alert(document.images[101].src);
//alert(imgName);
document.images[imgName].src=swapImg;
return false;

}