var Rules = {

    '.article_body a:mouseover': function(element) {
	
					element = element.parentNode;

        var title = element.getAttribute("title");

        if (title == "1" || title == "2" || title == "3" || title == "4") {

					  var className = "one";
					  if (title == "2") {
							className = "two";
					  } else if (title == "3") {
							className = "three";
						} else if (title == "4") {
							className = "four";
						}

 						element.className = className;
            element.title = "";

        }
    }

}

function moveElement(element, event) {
	var x=0;
	var y=0;

	if(event.pageX || event.pageY) {
		x = event.pageX;
		y = event.pageY;
	}
	else if (event.clientX || event.clientY) {
	   var ieXOffset = 0;
	   var ieYOffset = 0;
	   if(document.body.scrollLeft != 0) {
	       ieXOffset = document.body.scrollLeft;
	       ieYOffset = document.body.scrollTop;
	       
	   }
	   else {
	       ieXOffset = document.documentElement.scrollLeft;
	       ieYOffset = document.documentElement.scrollTop;
	   }
	   x = event.clientX + ieXOffset;
	   y = event.clientY + ieYOffset;
	}

	var el = $(element);
	el.style.left = (x+10).toString() + "px";
	el.style.top = (y-35).toString() + "px";
	
	Element.show(element);
}