function preloadmenu() {
    if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "/path/images/menu_informacoes2.gif";
      image_url[1] = "/path/images/menu_path2.gif";
      image_url[2] = "/path/images/menu_palestras2.gif";
      image_url[3] = "/path/images/menu_livros2.gif";
      image_url[4] = "/path/images/menu_jornal2.gif";
      image_url[5] = "/path/images/menu_helpers2.gif";
      image_url[6] = "/path/images/menu_forum2.gif";
      image_url[7] = "/path/images/menu_fotos2.gif";
      image_url[8] = "/path/images/menu_links2.gif";
      image_url[9] = "/path/images/menu_contato2.gif";
      image_url[10] = "/path/images/menu_formacoes2.gif";
       var i = 0;
       for(i=0; i<=3; i++) 
         preload_image_object.src = image_url[i];
    }
}

  

function menu1_over() {
	document.getElementById("menu1").src="/path/images/menu_informacoes2.gif";
}
function menu1_out() {
	document.getElementById("menu1").src="/path/images/menu_informacoes1.gif";
}

function menu2_over() {
	document.getElementById("menu2").src="/path/images/menu_path2.gif";
}
function menu2_out() {
	document.getElementById("menu2").src="/path/images/menu_path1.gif";
}

function menu3_over() {
	document.getElementById("menu3").src="/path/images/menu_palestras2.gif";
}
function menu3_out() {
	document.getElementById("menu3").src="/path/images/menu_palestras1.gif";
}

function menu4_over() {
	document.getElementById("menu4").src="/path/images/menu_livros2.gif";
}
function menu4_out() {
	document.getElementById("menu4").src="/path/images/menu_livros1.gif";
}


function menu5_over() {
	document.getElementById("menu5").src="/path/images/menu_jornal2.gif";
}
function menu5_out() {
	document.getElementById("menu5").src="/path/images/menu_jornal1.gif";
}


function menu6_over() {
	document.getElementById("menu6").src="/path/images/menu_helpers2.gif";
}
function menu6_out() {
	document.getElementById("menu6").src="/path/images/menu_helpers1.gif";
}


function menu7_over() {
	document.getElementById("menu7").src="/path/images/menu_forum2.gif";
}
function menu7_out() {
	document.getElementById("menu7").src="/path/images/menu_forum1.gif";
}


function menu8_over() {
	document.getElementById("menu8").src="/path/images/menu_fotos2.gif";
}
function menu8_out() {
	document.getElementById("menu8").src="/path/images/menu_fotos1.gif";
}

function menu9_over() {
	document.getElementById("menu9").src="/path/images/menu_links2.gif";
}
function menu9_out() {
	document.getElementById("menu9").src="/path/images/menu_links1.gif";
}

function menu10_over() {
	document.getElementById("menu10").src="/path/images/menu_contato2.gif";
}
function menu10_out() {
	document.getElementById("menu10").src="/path/images/menu_contato1.gif";
}

function menu11_over() {
	document.getElementById("menu11").src="/path/images/menu_formacoes2.gif";
}
function menu11_out() {
	document.getElementById("menu11").src="/path/images/menu_formacoes1.gif";
}