<!--

var darkened_pics = new Array();
var lighted_pics = new Array();


function preloadButtonSet(num,dark,light) {
 darkened_pics[num] = new Image();
 darkened_pics[num].src = dark;
 lighted_pics[num] = new Image();
 lighted_pics[num].src = light;
}

preloadButtonSet(0,"Images/services_off.gif","Images/services_on.gif");
preloadButtonSet(1,"Images/clients_off.gif","Images/clients_on.gif");
preloadButtonSet(2,"Images/contactus_off.gif","Images/contactus_on.gif");
preloadButtonSet(3,"Images/aboutus_off.gif","Images/aboutus_on.gif");


function lighten(num) {
 if (document.images)
  {
  eval("document.button"+num+".src = lighted_pics["+num+"].src;");
  }
 return false;
}
function darken(num) {
 if (document.images)
  {
  eval("document.button"+num+".src = darkened_pics["+num+"].src;");
  }
 return false;
}


//->