// Navegador
var ie = document.all ? 1 : 0;
var ns = document.layers ? 1 : 0;

// Popups
//------------------------------------------------------------------------------------------------
function abrePop(cual, nombre, alto, ancho, ajustable, scroll) {
	if (ie) {    
		window.open(cual, nombre, 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars='+scroll+',resizable='+ajustable+',copyhistory=no,width='+ancho+', height='+alto+', top=0, left=0');
	} else if (ns) {
		window.open(cual, nombre,'width=740,height=500,location=no,toolbar=no,directories=no,menubar=no,resizable='+ajustable+',scrollbars=yes, status=no');		
	} else {
		window.open(cual, nombre, 'left=0,top=0,width='+ancho+',height='+(alto+5)+',location=no,toolbar=no,directories=no,menubar=no,resizable='+ajustable+',scrollbars='+scroll+', status=no');
	}
}

function menuExpand ( item ) {
        items = new Array ( 'elem1', 'elem2');
        for ( i = 0; i < items.length; i++ ){
          if ( ( items[i] == item ) && ( document.getElementById(items[i]).style.visibility=='hidden' ) ){
            document.getElementById(items[i]).style.visibility='visible';
            document.getElementById(items[i]).style.position='relative';
          } else {
            document.getElementById(items[i]).style.visibility='hidden';
            document.getElementById(items[i]).style.position='absolute';
          }
        }
      }