function newImage(arg) {

	if (document.images) {

		rslt = new Image();

		rslt.src = arg;

		return rslt;

	}

}



function changeImages() {

	if (document.images && (preloadFlag == true)) {

		for (var i=0; i<changeImages.arguments.length; i+=2) {

			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];

		}

	}

}



var preloadFlag = false;

function preloadImages() {

	if (document.images) {

		nav_company_out = newImage("http://www.rhedpixel.com/images/navigation/nav_company-out.gif");

		nav_company_over = newImage("http://www.rhedpixel.com/images/navigation/nav_company-over.gif");

		nav_capabilities_over = newImage("http://www.rhedpixel.com/images/navigation/nav_capabilities-over.gif");

		nav_capabilities_out = newImage("http://www.rhedpixel.com/images/navigation/nav_capabilities-out.gif");

		nav_people_over = newImage("http://www.rhedpixel.com/images/navigation/nav_people-over.gif");

		nav_people_out = newImage("http://www.rhedpixel.com/images/navigation/nav_people-out.gif");

		nav_place_over = newImage("http://www.rhedpixel.com/images/navigation/nav_place-over.gif");

		nav_place_out = newImage("http://www.rhedpixel.com/images/navigation/nav_place-out.gif");

		nav_work_over = newImage("http://www.rhedpixel.com/images/navigation/nav_work-over.gif");

		nav_work_out = newImage("http://www.rhedpixel.com/images/navigation/nav_work-out.gif");

		nav_resources_over = newImage("http://www.rhedpixel.com/images/navigation/nav_resources-over.gif");

		nav_resources_out = newImage("http://www.rhedpixel.com/images/navigation/nav_resources-out.gif");

		preloadFlag = true;

	}

}





NS4 = (document.layers) ? 1 : 0;

IE4 = (document.all) ? 1 : 0;

W3C = (document.getElementById) ? 1 : 0; 





function setupMenu() {

	var URL = window.location.href;  // http://www.rhedpixel.com/thework/motiongraphics/piece.html

	var section = URL.substring(URL.indexOf("thework/")+8, URL.lastIndexOf("/"));  // motiongraphics



	// highlight Portfolio red

	var css1 = "portfolio_active";

	var css2 = "sidenav_level2_active";

	

	if (W3C) {

		document.getElementById("portfolio").className = css1;

		document.getElementById(section).className = css2;	

	} else if (NS4) {

		document.layers["portfolio"].className = css1;	

		document.layers[section].className = css2;

	} else {

		document.all["portfolio"].className = css1;

		document.all[section].className = css2;

	}

}







function init(){

	setupMenu();

	preloadImages();

}



window.onload = init;