// ****** Dropdowns ****** //

  var openmenus = new Array();
  var pressed = new Array();
  var timer;
  var okDOM = (document.getElementById || document.layers);

  function setTimer() {
  if (timer) clearTimeout(timer);
  timer = setTimeout('closeAll(1)',1);
  }

  function getObj(name) {
  if (document.getElementById) {return document.getElementById(name).style;}
  if (document.layers) {return document.layers[name];}
  }

  function closeAll(lvl) {
  for (i=openmenus.length - 1; i>=lvl; i--) {
  if (openmenus[i]) {
      var x = getObj(openmenus[i]);
      x.visibility = 'hidden';
      }
  openmenus[i] = null;
  if (pressed[i]) {
      pressed[i].className = '';
      pressed[i] = null;
      }
    }
  for(x=0; x<=1; x++) {
  	image_id = imgNames[x];
  	image_off = navOffs[x];
  	document.images[image_id].src = image_off;
  	}
  }

  function display(name,lvl,obj) {
    if (!okDOM) return;
    if (timer) clearTimeout(timer);
    if (openmenus[lvl] && openmenus[lvl] == name) return;
    if (openmenus[lvl]) closeAll(lvl);
    if (name) {
        var x = getObj(name);
        x.visibility = 'visible';
    }
    openmenus[lvl] = name;
    if (!document.layers) {
        if (obj.className) return;
        obj.className = 'over';
        if (pressed[lvl]) pressed[lvl].className = '';
    }
    pressed[lvl] = obj;
  }

  function closeEm() {
    if (!okDOM) return;
    setTimer();
  }



// ****** Rollovers ****** //

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

// ****** Preload Images ****** //

function doPreload() {
	var the_images = new Array('../images/bg_content_top.jpg', '../images/nav1alt_on.gif', '../images/nav1_on2.gif','../images/nav1_on.gif',  '../images/nav2_on.gif', '../images/nav3_on.gif', '../images/nav4_on.gif', '../images/nav1sub1.gif', '../images/nav1sub2.gif', '../images/nav1sub3.gif', '../images/nav1sub1_on.gif', '../images/nav1sub2_on.gif', '../images/nav1sub3_on.gif', '../images/nav3sub1.gif', '../images/nav3sub2.gif', '../images/nav3sub1_on.gif', '../images/nav3sub2_on.gif', '../images/tab_v_on.gif', '../images/tab_f_on.gif', '../images/tab_o_on.gif', '../images/tab_s_on.gif', '../images/tab_m_on.gif');
  	preloadImages(the_images);
}

function preloadImages(the_images_array) {
	for(var loop = 0; loop < the_images_array.length; loop++) {
 		var an_image = new Image();
		an_image.src = the_images_array[loop];
   }
}

function loadIt() {
	document.getElementById('flashcontent').style.visibility = "visible";
}	

function getKeyCode(e) {
    if (window.event)
        return window.event.keyCode;
    else if (e)
        return e.which;
    else
        return null;
}

function keyRestrict(e, validchars) {
    var key='', keychar='';
    key = getKeyCode(e);
    if (key == null) return true;
    keychar = String.fromCharCode(key);
    keychar = keychar.toLowerCase();
    validchars = validchars.toLowerCase();
    if (validchars.indexOf(keychar) != -1)
        return true;
 
    if ( key==null || key==0 || key==8 || key==9 || key==13 || key==27 )
        return true;
 
    return false;
}