if (document.images)  {

forfamiliesON = new Image(142,30);
forfamiliesON.src = "img/nav_forfamilies_on.gif";
forfamiliesOFF = new Image(142,30);
forfamiliesOFF.src = "img/nav_forfamilies_off.gif";

foreducatorsON = new Image(142,30);
foreducatorsON.src = "img/nav_foreducators_on.gif";
foreducatorsOFF = new Image(142,30);
foreducatorsOFF.src = "img/nav_foreducators_off.gif";

workshopsON = new Image(142,30);
workshopsON.src = "img/nav_workshops_on.gif";
workshopsOFF = new Image(142,30);
workshopsOFF.src = "img/nav_workshops_off.gif";

newsletterON = new Image(142,30);
newsletterON.src = "img/nav_newsletter_on.gif";
newsletterOFF = new Image(142,30);
newsletterOFF.src = "img/nav_newsletter_off.gif";

calendarON = new Image(142,30);
calendarON.src = "img/nav_calendar_on.gif";
calendarOFF = new Image(142,30);
calendarOFF.src = "img/nav_calendar_off.gif";

linksON = new Image(142,30);
linksON.src = "img/nav_links_on.gif";
linksOFF = new Image(142,30);
linksOFF.src = "img/nav_links_off.gif";

aboutusON = new Image(142,30);
aboutusON.src = "img/nav_aboutus_on.gif";
aboutusOFF = new Image(142,30);
aboutusOFF.src = "img/nav_aboutus_off.gif";

contactusON = new Image(142,30);
contactusON.src = "img/nav_contactus_on.gif";
contactusOFF = new Image(142,30);
contactusOFF.src = "img/nav_contactus_off.gif";

homeON = new Image(142,30);
homeON.src = "img/nav_home_on.gif";
homeOFF = new Image(142,30);
homeOFF.src = "img/nav_home_off.gif";


}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}

function b() {
  if (document.images) {
    for (var i=0; i<b.arguments.length; i+=2) {
      document[b.arguments[i]].src = eval(b.arguments[i+1] + ".src");
    }
  }
}