var timeoutID;

function Open(){

 document.getElementById("drop").style.display = "none";   

 document.getElementById("drop").style.top = "101px";
 document.getElementById("drop").style.left = "440px";
 document.getElementById("drop").style.display = "block";
    
 window.clearTimeout(timeoutID);
}
 
function Close(){
 timeoutID = window.setTimeout(function() {closeElement("drop")}, 300);
}
  
function closeElement(){
 document.getElementById("drop").style.display = "none";
}