function dropdown(mySel)
{
var myWin, myVal;
myVal = mySel.options[mySel.selectedIndex].value;
if(myVal)
   {
   if(mySel.form.target)myWin = parent[mySel.form.target];
   else myWin = window;
   if (! myWin) return true;
   myWin.location = myVal;
   }
return false;
}

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) {
		home_over = newImage("../images/home-over.jpg");
		services_over = newImage("../images/services-over.jpg");
		portfolio_over = newImage("../images/portfolio-over.jpg");
		news_over = newImage("../images/clients-over.jpg");
		bluebox_over = newImage("../images/bluebox-over.jpg");
		contact_over = newImage("../images/contact-over.jpg");
		preloadFlag = true;
	}
}