function changePic(id){
	document.all.tt.background="../img/t"+id+".jpg";
}
function rdNum(){
	var nid=Math.round(Math.random()*14);
	changePic(nid);
	setTimeout("rdNum();",10000);
}
window.onload=rdNum;

function shMenu(mid){
	var mobj = eval("document.all."+mid);
	var mnobj = eval("document.m"+mid);
	if(mobj.style.display=="none"){
		mobj.style.display="";
		mnobj.src="../../img/m.gif";
	}
	else {
		mobj.style.display="none";
		mnobj.src="../../img/p.gif";
	}
}