Law firm graduate recruitment site

/* ====================================================================
   ObjFader class
   Author: Mark Croxton - www.hallmark-design.co.uk
   Updated: 20.09.2007
   ==================================================================== */

// constructor
var ObjFader = function () {	
	
	// private vars
	var self = this; // get the scope of the instantiated object
	var	links = new Array();
		
	// public instance variables
	this.CSSselector = '#masthead ul li a'; // anchor to which fade behaviour is to be applied
	
	this.attachLinkBehavior = function () {
		// Opera <9 does not support opacity, but despite that obj.style.opacity returns true...
		// Mac Firefox >1.5 (and Camino) does support opacity, but it can trigger a Gheko rendering bug where Flash content disappears or flickers
		if (!window.opera && !detect_macFF()) {
			self.links = document.getElementsBySelector(self.CSSselector);
			var i;
			for (i=0;i<self.links.length;i++) {
				addEvent(self.links[i],"mouseover",self.doOver_features(i),false);	
				addEvent(self.links[i],'mouseout',self.doOut_features(i),false);
				addEvent(self.links[i],'click',self.doClick_features(i),false);

				self.links[i].innerHTML += '<div></div>';
				// DOM
				//eDIV = document.createElement("div");
				//self.links[i].appendChild(eDIV);
			
				// set initial opacity
				var obj = self.links[i];
				var fadeDiv = obj.childNodes[obj.childNodes.length-1];
				alphaControl.fade(fadeDiv,0,0,5);
			}
		}
	}
	
	this.doOver_features = function (myId) {
  		return function(e) { 
    		self.doOver(e, myId);
  		}
	}
	
	this.doOut_features = function (myId) {
  		return function(e) { 
    		self.doOut(e, myId);
  		}
	}
	
	this.doClick_features = function (myId) {
  		return function(e) { 
    		self.doClick(e, myId);
  		}
	}
	
	this.doOver = function(e, objIndex) {
		var obj = self.links[objIndex];
		var fadeDiv = obj.childNodes[obj.childNodes.length-1];		
		alphaControl.fade(fadeDiv,40,0,4);
	}
	
	this.doOut = function(e, objIndex) {
		var obj = self.links[objIndex];
		var fadeDiv = obj.childNodes[obj.childNodes.length-1];
		alphaControl.fade(fadeDiv,0,0,0);
	}
	// onClick is required by IE or it won't follow the link.
	this.doClick = function(e, objIndex) {
		window.location.href = self.links[objIndex];
	}	
}
//init
var myFader = new ObjFader();
addEvent(window, 'load', myFader.attachLinkBehavior, false);