var teacherImgSrc   = new Array();//图片地址 
var teacherIntro    = new Array();//介绍 
var teacherUrl      = new Array();//链接 
var teacherImgIntro = new Array();//链接 

  
		teacherImgSrc[0]   = '/uploadfile/200908/20090825081126625.jpg'; 
		teacherImgIntro[0] = '游戏人物制作练习—古装老人';
		teacherUrl[0]      = '/works/2009/0821/works_74.html';
		 
		teacherImgSrc[1]   = '/uploadfile/200908/20090826034059759.jpg'; 
		teacherImgIntro[1] = '游戏人物制作练习—皮甲熊人';
		teacherUrl[1]      = '/works/2009/0821/works_73.html';
		 
		teacherImgSrc[2]   = '/uploadfile/200908/20090826035458182.jpg'; 
		teacherImgIntro[2] = '游戏场景制作练习—古代民居1';
		teacherUrl[2]      = '/works/2009/0820/works_70.html';
		 

var teacherNumber = Math.floor(Math.random()*teacherImgSrc.length);//随机函数 

document.write("<div style='width:190px; margin:0px;text-align:center;  margin-bottom:3px;'> <a href='"+teacherUrl[teacherNumber]+"'><img src='"+teacherImgSrc[teacherNumber]+"' title='"+ teacherImgIntro[teacherNumber] +"' width=190 height=170/></a></div>");