// JavaScript Document
/* Tested and working; call it by placing onload="setCurrentPage();" in the <body> element */

function setCurrentPage(currentPage) {

    if (currentPage == 'general') {

        var direccionWeb = window.location.href; 
        var leftMenu = document.getElementById('menuizq');
        var leftMenulinkCollection = leftMenu.getElementsByTagName('a');
        var i;

        for (i=0;i < leftMenulinkCollection.length;i++) {

            if (direccionWeb == leftMenulinkCollection[i].href) {
            leftMenulinkCollection[i].className = 'activo';
        }

        }

    } else {

        var navigationContainer = document.getElementById('navbar');
        var navbarlinkCollection = navigationContainer.getElementsByTagName('a');
        var j;

        for (j=0;j < navbarlinkCollection.length;j++) {

            if (currentPage == navbarlinkCollection[j].id) {
            navbarlinkCollection[j].className = 'activo';
        }

    }

    }

}