function change(){
	number = Math.floor(Math.random()*7)	
	document.getElementById('ramdom').src="http://img.imbc.com//broad/tv/drama/mylady/images2/top_img"+(number+1)+".jpg"
	}
document.write("<div class=top_img><a href=http://www.imbc.com/broad/tv/drama/mylady/index.html onfocus='this.blur()'><img src=http://img.imbc.com/broad/tv/drama/mylady/images2/top_img1.jpg id=ramdom></a></div>");
change();