//torna objecto invisivel
function checkVisibility(vis)
{
	cam = document.getElementById(vis);
	//alert("false" + vis + cam.style.visibility);
	if(cam.style.visibility == 'visible')
		cam.style.visibility = 'hidden';
}
// torna objecto visivel
function checkVisibility_true(hid)
 { 
  cam = document.getElementById(hid);  
  if(cam.style.visibility == 'hidden');
   cam.style.visibility = 'visible';
  //alert("true" + cam + cam.style.visibility);
 }


// altera estado de visibilidade
function alteraVisibilidade(flag)
 { 
  cam = document.getElementById(flag);
  //alert("altera  " + "  " +flag + "  " +cam.style.visibility);
  if(cam.style.visibility == 'hidden')
   cam.style.visibility = 'visible';
  else
   cam.style.visibility = 'hidden'; 
 }


//mostra imagens com linha vermelha antes e depois
 function changeDisplay1(image, line, mvTop, mvLeft)
 {
 document.getElementById('c1').innerHTML="<img src=" + line + ">" + "<img src=" + image + ">" + "<a href='javascript:alteraVisibilidade(\"c1\")'>" + "<DIV class=\"H1center2\">FECHAR / CLOSE</DIV>" + "<DIV class=\"H1center3\">FECHAR / CLOSE</DIV>" + "<img src=" + line + "></a>";
 //alert(document.getElementById('c1').innerHTML);
 var al = alteraVisibilidade('c1');
 //alert("imagem " +mvTop + "  " +mvLeft);
 var move = moveIt(document.getElementById('c1'), mvTop, mvLeft); 
}



// mostra notas nos textos
 function changeText1(estilo, texto, mvTop, mvLeft)
 {
 document.getElementById('nt').innerHTML="<strong>" + estilo + "</strong>"  + texto + "<a href='javascript:alteraVisibilidade(\"nt\")'>" + "<br /><DIV class=\"H1center2\">FECHAR / CLOSE</DIV>" + "<DIV class=\"H1center3\">FECHAR / CLOSE</DIV></a>";
 //alert(mvTop +mvLeft);
 //alert(document.getElementById('c1').innerHTML);
 var al = alteraVisibilidade('nt');
 var move = moveIt(document.getElementById('nt'), mvTop, mvLeft);
}

// usado para trocar menus no rodapé
function changeDivHTML(div0, div1) 
{ 
var previousInnerHTML = new String(); 
previousInnerHTML = document.getElementById(div1).innerHTML; 
//previousInnerHTML = previousInnerHTML.concat("<h1>New HTML Text added to the div HTML tag.</h1>"); 
document.getElementById(div0).innerHTML = previousInnerHTML;
//alert(div0  +  div1 );
}

// posiciona divs absolutas
function moveIt(obj, mvTop, mvLeft) 
{
    //alert("moveIt  divs_index "  +mvTop + "  "+mvLeft);
	obj.style.position = "absolute";
	obj.style.top = mvTop;
	obj.style.left = mvLeft;
}