var supplierleadsTimeoutId = null;
var productleadsTimeoutId = null;

function leadsMouseOut(id) {
  if(id == 'productleads') {
    productleadsTimeoutId = setTimeout("removeItem('" + id + "')",1500);
  }
  else {
    supplierleadsTimeoutId = setTimeout("removeItem('" + id + "')",1500);
  }  
}  

function removeItem(id) {
   var Leads = document.getElementById(id);
   var firstLi = Leads.firstChild;
   
   Leads.removeChild(firstLi);   
   Leads.appendChild(firstLi);
   leadsMouseOut(id);
}

leadsMouseOut('supplierleads');
leadsMouseOut('productleads');