new Image().src = "";
op="";
cl="";

function dd_menu(obj){
	if(document.getElementById){document.getElementById(obj).style.display=='none'?document.getElementById(obj).style.display='':document.getElementById(obj).style.display='none';
	}
	else if(document.all){document.all(obj).style.display=='none'?document.all(obj).style.display='':document.all(obj).style.display='none';
	}
	else if(document.layers){document.layers[obj].display=='none'?document.layers[obj].display='':document.layers[obj].display='none';
	}
}