if (document.images) {
	// Preload Main Navigation
	nav1a=new Image; nav1a.src="images/n_home_1.gif";
	nav1b=new Image; nav1b.src="images/n_home_2.gif";

	nav2a=new Image; nav2a.src="images/n_about_1.gif";
	nav2b=new Image; nav2b.src="images/n_about_2.gif";

	nav3a=new Image; nav3a.src="images/n_degreeprograms_1.gif";
	nav3b=new Image; nav3b.src="images/n_degreeprograms_2.gif";
	
	nav4a=new Image; nav4a.src="images/n_resources_1.gif";
	nav4b=new Image; nav4b.src="images/n_resources_2.gif";
	
	nav5a=new Image; nav5a.src="images/n_contact_1.gif";
	nav5b=new Image; nav5b.src="images/n_contact_2.gif";
}

function act(imgName) {
	if (document.images) 
		document[imgName].src = eval(imgName + "b.src");
}

function inact(imgName) {
	if (document.images)
		document[imgName].src = eval(imgName + "a.src");
}

function openWin(file,windowName,prop) {
	var ObjWin = new Object()
	ObjWin.win = window.open(file, windowName, 'left=10,top=10,'+prop) 
}