var preloaded = []; // here is a lame preloading script i am putting in just for demonstration for (var i = 1; i <= 8; i++) { preloaded[i] = [loadImage(i + "-0.gif"), loadImage(i + "-1.gif")]; } function init() { // whatever stuff you need to do onload goes here. //========================================================================================== // if supported, initialize mtdropdowns //========================================================================================== // 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 (mtDropDown.isSupported()) { mtDropDown.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("button1", preloaded[1][1].src) }; menu1.ondeactivate = function() { swapImage("button1", preloaded[1][1].src) }; menu1.onactivate = function() { swapImage("button2", preloaded[2][1].src) }; menu1.ondeactivate = function() { swapImage("button2", preloaded[2][1].src) }; menu1.onactivate = function() { swapImage("button3", preloaded[3][1].src) }; menu1.ondeactivate = function() { swapImage("button3", preloaded[3][1].src) }; menu1.onactivate = function() { swapImage("button4", preloaded[4][1].src) }; menu1.ondeactivate = function() { swapImage("button4", preloaded[4][1].src) }; menu1.onactivate = function() { swapImage("button5", preloaded[5][1].src) }; menu1.ondeactivate = function() { swapImage("button5", preloaded[5][1].src) }; menu1.onactivate = function() { swapImage("button6", preloaded[6][1].src) }; menu1.ondeactivate = function() { swapImage("button6", preloaded[6][1].src) }; menu1.onactivate = function() { swapImage("button7", preloaded[7][1].src) }; menu1.ondeactivate = function() { swapImage("button7", preloaded[7][1].src) }; menu1.onactivate = function() { swapImage("button8", preloaded[8][1].src) }; menu1.ondeactivate = function() { swapImage("button8", preloaded[8][1].src) }; } } // this is a crappy example preloader. Use whichever one you want. function loadImage(sFilename) { var img = new Image(); img.src ="images/" + sFilename; return img; } // this is a crappy example image swapper. Use whichever you want. function swapImage(imgName, sFilename) { document.images[imgName].src = sFilename; } 　　彩票导航彩票网址大全彩票导航网金彩网 3D字谜 3D预测双色球预测 99彩吧 99彩吧首页 3d字谜 3d开奖结果 3d字谜双色球开奖结果福彩3d预测双色球预测 3d字谜 3d开奖结果彩票论坛 3d论坛福彩3d字谜福彩3d预测 3D试机号双色球预测福彩双色球开奖结果排列三预测绝密彩票网金彩网 3D字谜网 3D字谜网 3d之家布衣彩吧　　