var ulArray=[];
function drop(object){
	var ob = object.getElementsByTagName('ul'); ob[0].style.visibility="visible";
	var check="false"
	if(ob[0].status=="yes"){
		ob[0].style.visibility="hidden";ob[0].status="no";}else{ob[0].status="yes";
	
	}

	
	for(a in ulArray){if(ulArray[a]==ob[0]){check="true"}else{ulArray[a].style.visibility="hidden";ulArray[a].status="no";}}
	if(check=="false"){ulArray.push(ob[0])}
	
	
	}

function hide(event){if(event.target.className!="dir"){for(a in ulArray){ulArray[a].style.visibility="hidden";ulArray[a].status="no";}}}