sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);



monName= new Array("January", "Feburary", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");	
now = new Date;	

var index1 =0;

var mytext="a";	   

myHomePic = new Array("images/contact1.jpg","images/welcome2.jpg","images/welcome3.jpg", "images/welcome1.jpg");
picText = new Array("Middlesex College", "University of Western Ontario1", "University of Western Ontario2", "Teaching award 2004");

myResearchPic = new Array("images/research/doublehelix.jpg","images/research/chromosome.jpg","images/research/mouse.jpg", "images/research/PCNA3.jpg");
    
var index = 0 ;			
       imgCt = myHomePic.length;

       function choosePic() 
       {
	   if (document.images) 
	   {
	      randomNum = Math.floor((Math.random() * imgCt))
	      document.myPicture.src = myHomePic[randomNum]
	      document.researchPic.src = myResearchPic[randomNum]
	   }
        }