var cur=null;
function showsubm2(elem) {
  if (cur!=null)
   {
    cur.className = "submenu_item";
   }
  elem.className = "submenu_item over2";
  cur = elem;
}

function showsubm1(elem, isCur) {
    if (isCur){
       elem.className = "menu_item cur hover";
   }else{
       elem.className = "menu_item hover";
   }
}

function hidesubm1(elem, isCur) {
  if (cur!=null)
   {
    cur.className = "submenu_item";
	cur = null;
   }
   if (isCur){
       elem.className = "menu_item cur";
   }else{
       elem.className = "menu_item";
   }
}



function round ( val, precision ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Philip Peterson
    // +    revised by: Onno Marsman
    // *     example 1: round(1241757, -3);
    // *     returns 1: 1242000
    // *     example 2: round(3.6);
    // *     returns 2: 4
 
    return parseFloat(parseFloat(val).toFixed(precision));
}