var cssNode = document.createElement('link');
        cssNode.setAttribute('rel', 'stylesheet');
        cssNode.setAttribute('type', 'text/css');
        cssNode.setAttribute('href', 'css/mov_tablas.css');
        document.getElementsByTagName('head')[0].appendChild(cssNode);


function toggle(toggler) {
        if(document.getElementById) {
        imageSwitch = toggler;
        targetElement = toggler.parentNode.parentNode.parentNode.nextSibling;

        if(targetElement.className == undefined) {
        targetElement = toggler.parentNode.parentNode.parentNode.nextSibling.nextSibling;
        }


if (navigator.userAgent.indexOf('IE')!= -1)
        {
        var displaySetting = "block";
        }
        else
        {
        var displaySetting = "table-row-group";
        }


if (targetElement.style.display == displaySetting)
        {
        targetElement.style.display = "none";
        /* imageSwitch.style.backgroundImage = "url(img/leftmenu/down-arrow.gif)";*/
        }
        else
        {
        targetElement.style.display = displaySetting;
        /* imageSwitch.style.backgroundImage = "url(img/leftmenu/up-arrow.gif)";  */
        }
        }
}