function on_mou(i){
	eval("pic"+i+".src='http://images.sohu.com/cs/sms/alumni3/images/album/bb0"+i+".gif'")
}

function out_mou(i){
	eval("pic"+i+".src='http://images.sohu.com/cs/sms/alumni3/images/album/b0"+i+".gif'")
}