var IE3 = (navigator.appVersion.charAt(0)>=3 && (navigator.appVersion).indexOf("MSIE") != -1);
var IE4 = (navigator.appVersion.charAt(0)>=4 && (navigator.appVersion).indexOf("MSIE") != -1);
var NS3 = (navigator.appVersion.charAt(0)>=3 && (navigator.appName).indexOf("Netscape") != -1);
var NS4 = (navigator.appVersion.charAt(0)>=4 && (navigator.appName).indexOf("Netscape") != -1);
var OP8 = (navigator.appVersion.charAt(0)>=8 && (navigator.appName).indexOf("Opera") != -1);

if(IE4 || NS3 || OP8){
	var img_0a = new Image();var img_0b = new Image();
	var img_1a = new Image();var img_1b = new Image();
	var img_2a = new Image();var img_2b = new Image();
	var img_3a = new Image();var img_3b = new Image();
	var img_4a = new Image();var img_4b = new Image();
	var img_5a = new Image();var img_5b = new Image();
	var img_6a = new Image();var img_6b = new Image();
	var img_7a = new Image();var img_7b = new Image();
	img_0a = "./images/list_inf.gif";img_0b = "./images/list_inf2.gif";
	img_1a = "./images/list_upd.gif";img_1b = "./images/list_upd2.gif";
	img_2a = "./images/list_stu.gif";img_2b = "./images/list_stu2.gif";
	img_3a = "./images/list_mate.gif";img_3b = "./images/list_mate2.gif";
	img_4a = "./images/list_lin.gif";img_4b = "./images/list_lin2.gif";
	img_5a = "./images/list_roc.gif";img_5b = "./images/list_roc2.gif";
	img_6a = "./images/list_bbs.gif";img_6b = "./images/list_bbs2.gif";
	img_7a = "./images/list_mai.gif";img_7b = "./images/list_mai2.gif";

}
function ImgChange(Target,ImgCheck) { if(IE4 || NS3 || OP8){ document.images[Target].src = eval(ImgCheck); } }