var preloaded = [];
		
		var name_array = ["null", "vis_res", "mtg_grp", "acc", "nfk_area"];

		// here is a lame peloading script i am putting in just for demonstration
		for (var i = 1; i <= 11; i++) {
			//alert (name_array[i]);
			preloaded[i] = [loadImage("button_" + name_array[i] + ".jpg"), loadImage("button_" + name_array[i] + "_o.jpg")];
		}

		if (preloaded[loc_hold]) preloaded[loc_hold][0].src = preloaded[loc_hold][1].src;

		// alert (preloaded[5][0].src);

		function init() {
			// whatever stuff you need to do onload goes here.

			//==========================================================================================
			// if supported, initialize rsdropdowns
			//==========================================================================================
			// Check isSupported() so that menus aren't accidentally sent to non-supporting browsers.
			// This is better than server-side checking because it will also catch browsers which would
			// normally support the menus but have javascript disabled.
			//
			// If supported, call initialize() and then hook whatever image rollover code you need to do
			// to the .onactivate and .ondeactivate events for each menu.
			//==========================================================================================
			if (rsDropDown.isSupported()) {
				rsDropDown.initialize();

				// hook all the image swapping of the main toolbar to menu activation/deactivation
				// instead of simple rollover to get the effect where the button stays hightlit until
				// the menu is closed.
				// menu1.onactivate = function() { swapImage("home", preloaded[1][1].src) };
				// menu1.ondeactivate = function() { swapImage("home", preloaded[1][0].src) };
				
				//document.getElementById("liguria").className = "hover";
				menu1.onactivate = function() { swapImage("vis_res", preloaded[1][1].src) };
				menu1.ondeactivate = function() { swapImage("vis_res", preloaded[1][0].src) };

				menu2.onactivate = function() { swapImage("mtg_grp", preloaded[2][1].src) };
				menu2.ondeactivate = function() { swapImage("mtg_grp", preloaded[2][0].src) };

				menu3.onactivate = function() { swapImage("acc", preloaded[3][1].src) };
				menu3.ondeactivate = function() { swapImage("acc", preloaded[3][0].src) };

				// menu4.onactivate = function() { swapImage("att", preloaded[4][1].src) };
				// menu4.ondeactivate = function() { swapImage("att", preloaded[4][0].src) };

				menu4.onactivate = function() { swapImage("nfk_area", preloaded[4][1].src) };
				menu4.ondeactivate = function() { swapImage("nfk_area", preloaded[4][0].src) };

			}
		}

		// this is a crappyexample preloader. Use whichever one you want.
		function loadImage(sFilename) {
			var img = new Image();
			img.src ="/media/structure/" + loc_color + "/" + sFilename;
			// img.src ="/media/structure/green/" + sFilename;
			// alert (img.src);
			return img;
		}

		// this is a crappy example image swapper. Use whichever you want.
		function swapImage(imgName, sFilename) {
			// alert (sFilename);
			document.images[imgName].src = sFilename;
		}