var NS4;
var IE4;
var mouse_top;
var mouse_left;
var parent_menu_name = "class_userinfo";
var status_over = false;	
var event_id = "none";
//var child_menu_array = ["menu_child1", "menu_child2", "menu_child3","menu_child4"];
var column_height = 18;
var mainmenu_top_indent = 0;	
var menuover_bgcolor = "#C9CDD1";
var menuover_fgcolor = "#ffffff";
var default_menuover_bgcolor = "#ffffff";
var default_menuover_fgcolor = "#000000";

NS4 = (document.layers);
IE4 = (document.all);
isWin = (navigator.appVersion.indexOf("Win") != -1)
if (NS4) {
  document.captureEvents(Event.CLICK)
  document.onclick = MouseDown;
}
else if (IE4) {
  document.onclick = MouseDown;
}

function MouseDown(e) {
  event_target = event.srcElement;
  event_target = event_target.toString();
  event_check  = event_target.indexOf("javascript:UserMenuView(");		

  if (!status_over) hideAll();
  if (!event_check) {
    viewMenu(event, parent_menu_name);
  }
  else {
    hideAll();
  }
}

function hideAll() {
  eval(parent_menu_name + ".style.display = \"none\"");
  if (event_id == "none") { return; }
}

function viewMenu (e, ar_id) {
  if (ar_id == "none") return;
  menuLocBod = window.document.body;
  xPos = menuLocBod.scrollLeft + event.clientX;
  yPos = event.clientY + menuLocBod.scrollTop;
  screen_height = window.document.body.offsetHeight;
  screen_width = window.document.body.offsetWidth;
  mouse_top = e.y;
  mouse_left = e.x;
  eval("mainmenu_top_indent = " + parent_menu_name + ".children[0].children[0].children.length");
  mainmenu_top_indent = mainmenu_top_indent * column_height;
  if (screen_height > mouse_top + mainmenu_top_indent) 
  {
    yPos = event.clientY + menuLocBod.scrollTop;
  }
  else
  {
    yPos = (event.clientY + menuLocBod.scrollTop) - mainmenu_top_indent;
  }
  if (mouse_top - mainmenu_top_indent < 0) 
  {
   yPos = event.clientY + menuLocBod.scrollTop;
  }

  eval(ar_id + ".style.pixelTop =" + yPos);
  eval(ar_id + ".style.pixelLeft =" + xPos);		
  eval(ar_id + ".style.display = \"\"");
}

function onMouseOver(ar_obj, ar_id) {
  status_over = true;
  changeColor(ar_obj);
}

function onMouseOut(ar_obj) {
  status_over = false;
  changeColor(ar_obj);
}

function changeColor(ar_obj) {
  if (ar_obj.children[0].style.color == menuover_fgcolor) {
    ar_obj.children[0].style.color = default_menuover_fgcolor;
    ar_obj.children[0].style.backgroundColor = default_menuover_bgcolor;
  }
  else {
    ar_obj.children[0].style.backgroundColor = menuover_bgcolor;
    ar_obj.children[0].style.color = menuover_fgcolor;
  }
}