var idActual;
var numSubMenu;
function calculoSubMenu()
{
   if(event.srcElement.id != "")
	 {
       idActual = event.srcElement.id;
	 }
	  numSubMenu = idActual.charAt(idActual.length-1);
	  return numSubMenu;
}

function CabeceraDinamica()
{
	var imagen;
	var j,list= new Array();
	var imagen2;
	var j2,list2= new Array();
	
	if (document.getElementById("home"))
	{
		list[list.length]='../Imagenes/Branding_Home_01.jpg';
		list[list.length]='../Imagenes/Branding_Home_02.jpg';
		list[list.length]='../Imagenes/Branding_Home_03.jpg';
		list[list.length]='../Imagenes/Branding_Home_04.jpg';	
		
		j=parseInt(Math.random()*list.length);
		j=(isNaN(j))?0:j;
		
		list2[list2.length]='../Imagenes/Banner_00.jpg';
		list2[list2.length]='../Imagenes/Banner_00.jpg';		
		list2[list2.length]='../Imagenes/Banner_00.jpg';
		list2[list2.length]='../Imagenes/Banner_00.jpg';		
		
		j2=parseInt(Math.random()*list2.length);
		j2=(isNaN(j2))?0:j2;
				
		imagen=document.getElementById("navCabecera");
		imagen.style.backgroundImage='url('+list[j]+')';
		
		imagen2=document.getElementById("rightCabecera");
		imagen2.style.backgroundImage='url('+list2[j2]+')';
	}				
}

function onmouseOver_event()
{
    document.getElementById("sub"+calculoSubMenu()).style.display="block";
}
function onmouseOut_event()
{
  document.getElementById("sub"+calculoSubMenu()).style.display="none";
}	

function init_event()
{ 
	CabeceraDinamica();
  var inicio;
  if( document.body.id == "home")
  {
     inicio=1;
  }
  else
  {
     inicio = 0;
  }
 for(var a=inicio; a!=5; a++)
  {
   eval("document.all.sup"+a+".attachEvent('onmouseover',onmouseOver_event)");
	eval("document.all.sup"+a+".attachEvent('onmouseout',onmouseOut_event)");
	eval("document.all.sub"+a+".attachEvent('onmouseover',onmouseOver_event)");
	eval("document.all.sub"+a+".attachEvent('onmouseout',onmouseOut_event)");
  }
}
onload=init_event;