a = 3// a=numbers of banners 
	var slump = Math.random(); 
	var talet = Math.round(slump * (a-1)); 
	
	var list=new Array("/upload/201110/13092328618.jpg^http://www.zzidc.com/domain/tgzy/getFwqTgListQT.action","/upload/201110/13092349556.jpg^http://www.zzidc.com/domain/tgzy/getFwqTgListQT.action","/upload/201110/13092411118.jpg^http://www.zzidc.com/domain/tgzy/getFwqTgListQT.action","end");
	
	var randomImg = function () 
	{ 
		this.src = list[talet].split('^')[0]; 
		this.href = list[talet].split('^')[1]; 
		this.width = "525";
		this.height = "170";
	} 
	
	var tmp =new randomImg();
	
	var visa = ""; 
	visa += '<a href="'+tmp.href+'">' 
	visa += '<img src="'+tmp.src+'" height='+tmp.height 
	visa += ' width='+tmp.width+'>'; 
	visa += '</a>'

document.write(visa);