function changeImgSrc(id,v)     { var el = document.getElementById(id); if (el) el.setAttribute('src',v); }

function changeBgImage(id,v)    { var el = document.getElementById(id); if (el) el.style.backgroundImage = 'url('+v+')'; }

var link_nohandler= window.clientInformation ? null : window.undefined;

function link_down() {
    this.onfocus= this.blur;
}

function link_up() {
    this.onfocus= link_nohandler;
}

function link_bind() {
    for (var i= document.links.length; i-->0;) {
        document.links[i].onmousedown= link_down;
        document.links[i].onmouseup= link_up;
    }
}

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_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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];}
}

if(document.images)
{
  var image_array = new Array();
	
  // path to the directory with images
  var path = '/images/menus/';

  // enumeration of the "active" images
	image_array[0] = path + "top_menu_services.jpg";
	image_array[1] = path + "top_menu_products.jpg";
	image_array[2] = path + "top_menu_logout.jpg";
	image_array[3] = path + "top_menu_home.jpg";
	image_array[4] = path + "top_menu_contact.jpg";

  var preload_image = new Array ();
 
  for(var i=0; i<image_array.length; i++)
  {
    preload_image[i]= new Image();
    preload_image[i].src = image_array[i];
  }
}