///////////////////////////////////////////////////////////////////////////
// home page navigation layer
// Load the navigation images and animate them
///////////////////////////////////////////////////////////////////////////

if (document.images) { 

		about_us = new Image();
    	about_us.src = "images/home_page/about_us_on.gif";

    	about_us_off = new Image();
    	about_us_off.src = "images/home_page/about_us_off.gif";

		investor_relations = new Image();
    	investor_relations.src = "images/home_page/investor_relations_on.gif";
    	
    	investor_relations_off = new Image();
    	investor_relations_off.src = "images/home_page/investor_relations_off.gif";

		contact_us = new Image();
    	contact_us.src = "images/home_page/contact_us_on.gif";
    	
    	contact_us_off = new Image();
    	contact_us_off.src = "images/home_page/contact_us_off.gif";
    	
    	markets_served = new Image();
    	markets_served.src = "images/home_page/markets_served_on.gif";
    	
    	markets_served_off = new Image();
    	markets_served_off.src = "images/home_page/markets_served_off.gif";
    	
}

function buttonOver(imgname)
{
		if (document.images)
			document[imgname].src = eval(imgname + ".src");
}

function buttonOut(imgname)
{
		if (document.images)
			document[imgname].src = eval(imgname + "_off.src");
}