function oculta_menus(){
	/*
	subsecciones=getElementsByClass("menu_desplegable_2");
	i=0;
	for (i;i<eval(subsecciones.length);i++) {
		subsecciones[i].style.display= "none";
		
	}
	//document.getElementById(seccion).style.display='';
	*/
}





//function despliega(seccion){
//  var submenu = document.getElementById(seccion);
//    if(submenu.style.display == "none"){
//      submenu.style.display = "block";
//    }
//    else{
//      submenu.style.display = "none";
//    }
//}


function despliega(seccion){
	var menu = eval("document.getElementById('menu"+seccion+"')");		
	var submenu = eval("document.getElementById('submenu"+seccion+"')");
	
 // var submenu = document.getElementById(submenu);
 // var menu = document.getElementById(menu);
  
    if(submenu.style.display == "none"){
      submenu.style.display = "block";
      menu.className = "menu_menos";
      
    }
    else{
      submenu.style.display = "none";
      menu.className = "menu_mas";
    }
}

function valor(seccion){
	var menu = eval("document.getElementById('menu"+seccion+"')");		
	var submenu = eval("document.getElementById('submenu"+seccion+"')");
	 
    if(submenu.style.display == "none"){
	return '0';
    }
    else{
      return '1';
    }
}


function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function deshabilitar_todos()
{
	c='opcion1,opcion2,opcion3,opcion4,opcion5';
	e=c.split(",");
	for(y=0;y<e.length;y++)
	{
		if(document.getElementById(e[y]))
	document.getElementById(e[y]).style.display="none"; 
	}
}
function si(cuales)
{
	
	if(document.getElementById(cuales).style.display=="none") document.getElementById(cuales).style.display="";	return;
	if(document.getElementById(cuales).style.display=="") document.getElementById(cuales).style.display="none";	return;
	
}