var ok = false;
if(document.images)
{
   ok = true;
   theneed_over = new Image(180,23);
   theneed_out = new Image(180,23);
   theneed_over.src = "images/theneed_over.gif";
   theneed_out.src = "images/theneed_out.gif";
   intro_over = new Image(180,23);
   intro_out = new Image(180,23);
   intro_over.src = "images/intro_over.gif";
   intro_out.src = "images/intro_out.gif";
   notebook_over = new Image(180,23);
   notebook_out = new Image(180,23);
   notebook_over.src = "images/notebook_over.gif";
   notebook_out.src = "images/notebook_out.gif";
   alternatives_over = new Image(180,23);
   alternatives_out = new Image(180,23);
   alternatives_over.src = "images/alternatives_over.gif";
   alternatives_out.src = "images/alternatives_out.gif";
   resources_over = new Image(180,23);
   resources_out = new Image(180,23);
   resources_over.src = "images/resources_over.gif";
   resources_out.src = "images/resources_out.gif";
   whatyoucando_over = new Image(180,23);
   whatyoucando_out = new Image(180,23);
   whatyoucando_over.src = "images/whatyoucando_over.gif";
   whatyoucando_out.src = "images/whatyoucando_out.gif";
   faq_over = new Image(180,23);
   faq_out = new Image(180,23);
   faq_over.src = "images/faq_over.gif";
   faq_out.src = "images/faq_out.gif";
   sila_over = new Image(150,29);
   sila_out = new Image(150,29);
   sila_over.src = "images/sila_over.gif";
   sila_out.src = "images/sila_out.gif";
   email_over = new Image(150,14);
   email_out = new Image(150,14);
   email_over.src = "images/email_over.gif";
   email_out.src = "images/email_out.gif";
   donate_over = new Image(150,29);
   donate_out = new Image(150,29);
   donate_over.src = "images/donate_over.gif";
   donate_out.src = "images/donate_out.gif";
}

function menu_over(imageName)
{
   if(ok)
      document[imageName].src = eval(imageName+"_over.src");
}

function menu_out(imageName)
{
   if(ok)
      document[imageName].src = eval(imageName+"_out.src");
}