/** Função que carrega as imagens previamente **/
function preLoadImages(){
	var t = '<layer top="-100" left="0" visibility="hide"><div style="position:absolute; top:-100px; left:0px; visibility:hidden">';

	for(i=0; i < arguments.length; i++)
		t += '<img src="' + arguments[i] + '" height="10" width="10">';

	t += '</div></layer>';
	document.write(t);
}


/** Função que faz a troca das imagens **/
function swapImage(imgN,imgU){
	if(document.images)document.images[imgN].src = imgU;
}