function preloadmenu() {
    if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "/core/images/menu_novidades_2.gif";
      image_url[1] = "/core/images/menu_core_2.gif";
      image_url[2] = "/core/images/menu_instituto_2.gif";
      image_url[3] = "/core/images/menu_programacao_2.gif";
      image_url[4] = "/core/images/menu_fotos_2.gif";
      image_url[5] = "/core/images/menu_links_2.gif";
      image_url[6] = "/core/images/menu_terapeutas_2.gif";
      image_url[7] = "/core/images/menu_contato_2.gif";

       var i = 0;
       for(i=0; i<=3; i++) 
         preload_image_object.src = image_url[i];
    }
}

  

function menu1_over() {
	document.getElementById("menu1").src="/core/images/menu_novidades_2.gif";
}
function menu1_out() {
	document.getElementById("menu1").src="/core/images/menu_novidades_1.gif";
}


function menu2_over() {
	document.getElementById("menu2").src="/core/images/menu_core_2.gif";
}
function menu2_out() {
	document.getElementById("menu2").src="/core/images/menu_core_1.gif";
}


function menu3_over() {
	document.getElementById("menu3").src="/core/images/menu_instituto_2.gif";
}
function menu3_out() {
	document.getElementById("menu3").src="/core/images/menu_instituto_1.gif";
}


function menu4_over() {
	document.getElementById("menu4").src="/core/images/menu_programacao_2.gif";
}
function menu4_out() {
	document.getElementById("menu4").src="/core/images/menu_programacao_1.gif";
}


function menu5_over() {
	document.getElementById("menu5").src="/core/images/menu_fotos_2.gif";
}
function menu5_out() {
	document.getElementById("menu5").src="/core/images/menu_fotos_1.gif";
}


function menu6_over() {
	document.getElementById("menu6").src="/core/images/menu_links_2.gif";
}
function menu6_out() {
	document.getElementById("menu6").src="/core/images/menu_links_1.gif";
}


function menu7_over() {
	document.getElementById("menu7").src="/core/images/menu_terapeutas_2.gif";
}
function menu7_out() {
	document.getElementById("menu7").src="/core/images/menu_terapeutas_1.gif";
}


function menu8_over() {
	document.getElementById("menu8").src="/core/images/menu_contato_2.gif";
}
function menu8_out() {
	document.getElementById("menu8").src="/core/images/menu_contato_1.gif";
}