// Documento JavaScript

/******************************************************************************/
/**                 FUNCIONES QUE CONTROLAN EL MENU DESPLEGABLE              **/
/******************************************************************************/
function ocultamenu(){
  var menu1 = document.getElementById("fisica");
  var menu2 = document.getElementById("matematica");
  var menu3 = document.getElementById("bases");
  var menu4 = document.getElementById("programacion");
  var menu5 = document.getElementById("sistemasoperativos");
  var menu6 = document.getElementById("tecnologo");

  menu1.style.display = "none";
  menu2.style.display = "none";
  menu3.style.display = "none";
  menu4.style.display = "none";
  menu5.style.display = "none";
  menu6.style.display = "none";
 llamarasincrono('centro.html','contenidos');
}

function despliega1(){
  var menu = document.getElementById("fisica");
    if(menu.style.display == "none"){
      menu.style.display = "block";
    }
    else{
      menu.style.display = "none";
    }
}
function despliega2(){
  var menu = document.getElementById("matematica");
    if(menu.style.display == "none"){
      menu.style.display = "block";
    }
    else{
      menu.style.display = "none";
    }
}
function despliega3(){
  var menu = document.getElementById("bases");
    if(menu.style.display == "none"){
      menu.style.display = "block";
    }
    else{
      menu.style.display = "none";
    }
}
function despliega4(){
  var menu = document.getElementById("programacion");
    if(menu.style.display == "none"){
      menu.style.display = "block";
    }
    else{
      menu.style.display = "none";
    }
}
function despliega5(){
  var menu = document.getElementById("sistemasoperativos");
    if(menu.style.display == "none"){
      menu.style.display = "block";
   }
    else{
      menu.style.display = "none";
    }
}
function despliega6(){
  var menu = document.getElementById("tecnologo");
    if(menu.style.display == "none"){
      menu.style.display = "block";
   }
    else{
      menu.style.display = "none";
    }
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);