function Show_submenu(n){
 if(n == 1){
  version=navigator.appVersion;
  if(version.indexOf ("MSIE") != -1){
   pos=getElementPosition('menustart');
   document.getElementById('submenu').style.top=pos.top+15;
   document.getElementById('submenu').style.left=pos.left;
  }
  document.getElementById('submenu').style.display="block";
 }
 else{
  document.getElementById('submenu').style.display="none";
 }
}

function Show_submenu1(n){
 if(n == 1) {
  pos=getElementPosition('menustart');
  version=navigator.appVersion;
  if(version.indexOf ("MSIE") != -1) 
   document.getElementById('submenu').style.top=pos.top+15;
  document.getElementById('submenu').style.left=pos.left;
  document.getElementById('submenu').style.display="block";
 }
 else{
  document.getElementById('submenu').style.display="none";
 }
}

function getElementPosition(elemId){
    var elem = document.getElementById(elemId);
    var w = elem.offsetWidth;
    var h = elem.offsetHeight;
    var l = 0;
    var t = 0;
    while (elem)
    {
        l += elem.offsetLeft;
        t += elem.offsetTop;
        elem = elem.offsetParent;
    }
    return {"left":l, "top":t, "width": w, "height":h};
}

function Check_email(obj){
 email=obj.value;
 if(email =="" || email.indexOf("@") == -1) 
 {
  alert('Error e-mail format !')
  obj.focus();
  return false;
 }
 return true;
}