function getByID (n) {
    var d = window.document;
    if (d.getElementById)
        return d.getElementById(n);
    else if (d.all)
        return d.all[n];
}
function showHide (item,site_root) {
    var obj = getByID('show_hide_' + item);
    var lnk_obj = getByID('show_hide_link_' + item);
    if (obj && lnk_obj)
        if (obj.style.display == 'none') {
            obj.style.display = 'block';
            lnk_obj.style.backgroundImage = 'url(' + site_root + '_images/show_hide_arrow_down.gif)';
        } else if (obj.style.display == 'block') {
            obj.style.display = 'none';
            lnk_obj.style.backgroundImage = 'url(' + site_root + '_images/show_hide_arrow_right.gif)';
        }
}
function getElementsByClassName(node, classname)
{
    var a = [];
    var re = new RegExp('\\b' + classname + '\\b');
    var els = node.getElementsByTagName("*");
    for(var i=0,j=els.length; i<j; i++)
        if(re.test(els[i].className))a.push(els[i]);
    return a;
}
function initallyHide () {
    var a = getElementsByClassName(document,'hidden-info');
	for(var i=0,j=a.length; i<j; i++){
		obj = a[i];
        obj.style.display = 'none';
	}
}