// JavaScript Document
var menu_open_timer = Array();
var menu_close_timer = Array();
var menu_open_delay = 500;
var menu_close_delay = 50;
var floatingForms;
var current_menu;
var open_menu;
var opening;

function getElementsByClassName(oElm, strTagName, oClassNames){
/*	Function Written by Jonathan Snook, http://www.snook.ca/jonathan
    Add-ons by Robert Nyman, http://www.robertnyman.com  */
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    var arrRegExpClassNames = new Array();
    if(typeof oClassNames == "object"){
        for(var i=0; i<oClassNames.length; i++){
            arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)"));
        }
    }
    else{
        arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)"));
    }
    var oElement;
    var bMatchesAll;
    for(var j=0; j<arrElements.length; j++){
        oElement = arrElements[j];
        bMatchesAll = true;
        for(var k=0; k<arrRegExpClassNames.length; k++){
            if(!arrRegExpClassNames[k].test(oElement.className)){
                bMatchesAll = false;
                break;
            }
        }
        if(bMatchesAll){
            arrReturnElements.push(oElement);
        }
    }
    return (arrReturnElements)
} // End of getElementsByClassName

function bigNav() {
  if (document.all && document.getElementById) {
    navIndex = document.getElementById("dd_nav_list");
    floatingForms = getElementsByClassName( document, "*", "floatingForm" );
    for (i=0; i<navIndex.childNodes.length; i++) {
      items = navIndex.childNodes[i];
      if (items.nodeName=="LI") {
        items.onmouseover=function() {
          _this = this;
          //alert( "opening... " + this.id  );
          if ( open_menu != this.id ) // if menu not currently open is hovered over
          {
            //alert( "opening... " + this.id  );
            window.clearTimeout(menu_open_timer[opening]);  // Stop the previously hovered menu from opening
            //alert( "currently open: " + open_menu );
            if ( typeof open_menu != 'undefined' && open_menu ) // if a menu is currently open
            {
              bigNavCloseMenu( open_menu, 'immediate' );  // Close the currently open menu
              bigNavOpenMenu( _this.id, 'immediate' ); // Open the currently hovered menu
            }
            else // if no menu is currently open
            {
            //current_menu = this;
              menu_open_timer[_this.id] = window.setTimeout( "bigNavOpenMenu( _this.id, 'delayed' )", menu_open_delay ); // Open the current menu after a delay
            }
          }
          else // else the menu is already open
          {
            window.clearTimeout(menu_close_timer[this.id]); // Stop the current menu from closing
            //alert( "Not closing " + this.id );
            //window.clearTimeout(menu_close_timer[this.id]);
            //alert( open_menu + " already open" );
          }

          /*
          for( e=0; e<floatingForms.length; e++){
            floatingForms[e].style.visibility = "hidden";
          }
          this.className+=" over";
          */
        }
        items.onmouseout=function() {
          _this = this;
          //alert( "open_menu: " + open_menu );
          if ( open_menu == this.id ) // if the current menu is open
          {
            //alert( "closing... " + this.id  );
            window.clearTimeout(menu_open_timer[this.id]); // Stop the current menu from opening
        	  //window.clearTimeout(menu_close_timer[this.id]);
            //current_menu = this;
            menu_close_timer[_this.id] = window.setTimeout( "bigNavCloseMenu( _this.id, 'delayed' )", menu_close_delay );  // Close the current menu after a delay
          }
          else if( typeof open_menu == 'undefined' || !open_menu ) // else if no menu is open
          {
            window.clearTimeout(menu_open_timer[this.id]); // Stop the current menu from opening
            //alert( "Not opening " + this.id );
            //menu_close_timer[_this.id] = window.setTimeout( "bigNavCloseMenu( _this.id, 'delayed' )", menu_close_delay );  // Close the current menu after a delay
          }
        }
      }
    }
  }
}

function bigNavOpenMenu( menu_id, from )
{
  window.clearTimeout( menu_open_timer[menu_id] ); // clear any delayed openings of the current menu
  //alert( menu_id );
  for( e=0; e<floatingForms.length; e++){
    floatingForms[e].style.visibility = "hidden";
  }
  menu = document.getElementById( menu_id );
  //menu = this;
  //menu = current_menu;
  menu.className+=" over";  // open the current menu
  open_menu = menu_id; // set the currently open menu to the current menu
  //alert( from + " open " + menu_id + ": " + menu.className );
}

function bigNavCloseMenu( menu_id, from )
{
  window.clearTimeout( menu_close_timer[menu_id] ); // clear any delayed closings of the current menu
  //alert( menu_id );
  for( e=0; e<floatingForms.length; e++){
    floatingForms[e].style.visibility = "visible";
  }
  menu = document.getElementById( menu_id );
  //menu = this;
  //menu = current_menu;
  menu.className=menu.className.replace(/ over/g, ""); // close the current menu
  open_menu = ''; // set the currently open menu to none
  //alert( from + " close " + menu_id + ": " + menu.className );
}

//function prepareAll () {
	//bigNav();
//}

window.onload = bigNav;