<!--
//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
       }

       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;
       }
//-->