function set(id)
{
    newImage = "url(/images/main/nav_"+id+"2.gif)";
    document.getElementById("a-"+id).style.backgroundImage = newImage;
}


function reset(id)
{
    newImage = "url(/images/main/nav_"+id+"1.gif)";
    document.getElementById("a-"+id).style.backgroundImage = newImage;
    var strURL = location.href.toLowerCase();
	if (strURL.indexOf('/products_and_services/') > -1) {
	    newImage = "url(/images/main/nav_products3.gif)";
		document.getElementById("a-products").style.backgroundImage = newImage;
	}
	else if (strURL.indexOf('/about_us/') > -1) {
	    newImage = "url(/images/main/nav_about3.gif)";
		document.getElementById("a-about").style.backgroundImage = newImage;
	}
	else if (strURL.indexOf('/newsroom/') > -1) {
	    newImage = "url(/images/main/nav_newsroom3.gif)";
		document.getElementById("a-newsroom").style.backgroundImage = newImage;
	}
	else if (strURL.indexOf('/careers/') > -1) {
	    newImage = "url(/images/main/nav_careers3.gif)";
		document.getElementById("a-careers").style.backgroundImage = newImage;
	}
	else if (strURL.indexOf('/contact_us/') > -1) {
	    newImage = "url(/images/main/nav_contact3.gif)";
		document.getElementById("a-contact").style.backgroundImage = newImage;
	}
}