function backToTop() {
    var x1 = x2 = x3 = 0;
    var y1 = y2 = y3 = 0;

    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }

    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }

    x3 = window.scrollX || 0;
    y3 = window.scrollY || 0;

    var x = Math.max(x1, Math.max(x2, x3));
    var y = Math.max(y1, Math.max(y2, y3));

    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

    if (x > 0 || y > 0) {
        window.setTimeout("backToTop()", 25);
    }
}

function initRollOverImages() {
  var image_cache = new Object();
  $("img.swap").each(function(i) {
    var imgsrc = this.src;
    var dot = this.src.lastIndexOf('.');
    var imgsrc_on = this.src.substr(0, dot) + '_on' + this.src.substr(dot, 4);
    image_cache[this.src] = new Image();
    image_cache[this.src].src = imgsrc_on;
    $(this).hover(
      function() { this.src = imgsrc_on; },
      function() { this.src = imgsrc; });
  });
}

$(document).ready(initRollOverImages);

/* Pulldown Menu */
var openedMenu = null;
var submenuTimer;

function menuOvr(id){
 if (openedMenu && openedMenu != id)
 CloseMenu(id);
 OpenMenu(id);
}

function OpenMenu(id){
 if ( document.getElementById )
  document.getElementById( id ).style.visibility = 'visible'
 else if ( document.all )
  document.all( id ).style.visibility = 'visible'
 else if ( document.layers )
  document.layers[ id ].visibility = 'show'
  clearTimeout(submenuTimer);
  openedMenu = id;
}

function CloseMenu(){
 if ( document.getElementById )
  document.getElementById( openedMenu ).style.visibility = 'hidden'
 else if ( document.all )
  document.all( openedMenu ).style.visibility = 'hidden'
 else if ( document.layers )
  document.layers[ openedMenu ].visibility = 'hide'
  openedMenu = null;
}

function ClickMenu(){}


/* Dropdown MM_jumpMenu */
function MM_jumpMenu(targ,selObj,restore){
	eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
	if (restore) selObj.selectedIndex=0;
}

function addBookmark(title,url) {
    if (window.sidebar) {
        window.sidebar.addPanel(title, url,"");
    } else if( document.all ) {
        window.external.AddFavorite( url, title);
    } else if( window.opera && window.print ) {
        return true;
    }
}