<!--
//dropdown_initialize.js
		var preloaded = [];

		for (var i = 1; i <= 8; i++) {
			preloaded[i] = [loadImage(i + "-1.gif"), loadImage(i + "-1.gif")];		//设置图片的OnMouseOver和OnMouseOut的路径
			//preloaded[i] = [loadImage(i + "images/btn_01.jpg"), loadImage(i + "images/btn_01s.jpg")];		//设置图片的OnMouseOver和OnMouseOut的路径

		}

		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("button2", preloaded[2][1].src) };
				//menu2.ondeactivate = function() { swapImage("button2", preloaded[2][0].src) };

				//menu3.onactivate = function() { swapImage("button3", preloaded[3][1].src) };
 			    //menu3.ondeactivate = function() { swapImage("button3", preloaded[3][0].src) };

				//menu4.onactivate = function() { swapImage("button4", preloaded[4][1].src) };
				//menu4.ondeactivate = function() { swapImage("button4", preloaded[4][0].src) };

				//menu5.onactivate = function() { swapImage("button5", preloaded[5][1].src) };
				//menu5.ondeactivate = function() { swapImage("button5", preloaded[5][0].src) };

				//menu6.onactivate = function() { swapImage("button6", preloaded[6][1].src) };
				//menu6.ondeactivate = function() { swapImage("button6", preloaded[6][0].src) };

				//menu7.onactivate = function() { swapImage("button7", preloaded[7][1].src) };
				//menu7.ondeactivate = function() { swapImage("button7", preloaded[7][0].src) };
				
				//menu8.onactivate = function() { swapImage("button8", preloaded[8][1].src) };
				//menu8.ondeactivate = function() { swapImage("button8", preloaded[8][0].src) };

			}
		}

		function loadImage(sFilename) {
			var img = new Image();
			img.src ="" + sFilename;
			return img;
		}

		function swapImage(imgName, sFilename) {
			document.images[imgName].src = sFilename;
		}
//-->