<!--
//dropdown_initialize.js
		var preloaded = new Array;

	    //preloaded[1] = [loadImage("images/index_r2_c3.gif"), loadImage("images/index_r2_c3.gif")];		//设置图片的OnMouseOver和OnMouseOut的路径
	    //preloaded[2] = [loadImage("images/index_r2_c5.gif"), loadImage("images/index_r2_c5.gif")];		//设置图片的OnMouseOver和OnMouseOut的路径

		function init() {

			if (mtDropDown.isSupported()) {
				mtDropDown.initialize();

			}
		}

		function loadImage(sFilename) {
			var img = new Image();
			img.src ="" + sFilename;
			return img;
		}

		function swapImage(imgName, sFilename) {
			//document.images[imgName].src = sFilename;
		}
//-->