var preloaded = [];
		var preloaded_down1 = [];
		var MenuNumber = 1;
		for (var i = 1; i <= MenuNumber; i++) {
			preloaded[i] = [loadImage(i + "-0.gif"), loadImage(i + "-1.gif")];		
			preloaded_down1[i] = [loadImage(i + "-2.gif"), loadImage(i + "-3.gif")];
			
			}

		function init() {
			if (mtDropDown.isSupported()) {
				mtDropDown.initialize();

			menu1.onactivate = function() 
					{ swapImage("button1", preloaded[1][1].src)
					};
				menu1.ondeactivate = function() 
					{ swapImage("button1", preloaded[1][0].src) 
					};

				menu2.onactivate = function() 
					{ swapImage("button1", preloaded[1][1].src)
					};
				menu2.ondeactivate = function() 
					{ swapImage("button1", preloaded[1][0].src) 
					};

				menu3.onactivate = function() 
					{ swapImage("button1", preloaded[1][1].src)
					};
				menu3.ondeactivate = function() 
					{ swapImage("button1", preloaded[1][0].src) 
					};

							
			}
		}

		function loadImage(sFilename) {
			var img = new Image();
			img.src ="images/" + mnDosya + "/" + sFilename;
			return img;
		}

		function swapImage(imgName, sFilename) {
			var idx = imgName.replace("button", "");
			if(sFilename.indexOf("-1.gif")!=-1){
				if(idx!=1){
					var sol = "sag"+(idx-1);
					document.images[sol].src = "images/" + mnDosya + "/" + (idx-1) + "-sagover2.gif"; 
				
				}
				if(idx!=MenuNumber){
					var sag = "sag"+idx;
					document.images[sag].src = "images/" + mnDosya + "/" + idx + "-sagover.gif"; 
				
				}
			}
			else{
				if(idx!=1){
					var sol = "sag"+(idx-1);
					document.images[sol].src = "images/" + mnDosya + "/" + (idx-1) + "-sag.gif"; 
				
				}
				if(idx!=MenuNumber){
					var sag = "sag"+idx;
					document.images[sag].src = "images/" + mnDosya + "/" + idx + "-sag.gif"; 
					
				}
			}
			document.images[imgName].src = sFilename;
		}
		
		function swapImage1(imgName, sFilename) {
			var idx1 = imgName.replace("button2", "");
			if(sFilename.indexOf("-3.gif")!=-3){
				if(idx1!=3){
					var sol = "sag"+(idx1-3);
					document.images[sol].src = "images/" + mnDosya + "/" + (idx1-3) + "-sagover2.gif"; 
				
				}
				if(idx1!=MenuNumber){
					var sag = "sag"+idx1;
					document.images[sag].src = "images/" + mnDosya + "/" + idx1 + "-sagover.gif"; 
				
				}
			}
			else{
				if(idx1!=3){
					var sol = "sag"+(idx1-3);
					document.images[sol].src = "images/" + mnDosya + "/" + (idx1-3) + "-sag.gif"; 
				
				}
				if(idx1!=MenuNumber){
					var sag = "sag"+idx1;
					document.images[sag].src = "images/" + mnDosya + "/" + idx1 + "-sag.gif"; 
					
				}
			}
			document.images[imgName].src = sFilename;
		}