function dialog(src){
	window.open(src, 'dialog', 'height=500,width=500,toolbar=no,directories=no,status=no,menubar=no, scrollbars=no,resizable=no,location=no'); 
}

function winName(name){
  window.name=name;
  return true;
}

function locateImage(name) {
		var theImage = false;
		if (document.images) {
				theImage = document.images[name];
		}
		if (theImage) {
				return theImage;
		}
		return (false);
}

function swap(oldIMG, newIMG, newALT) {
		var theImage = locateImage(oldIMG);
		if (theImage) {
				theImage.src = newIMG;
				theImage.alt = new ALT;
		}
}