sfHover = function() {
    var sfEls = document.getElementById("nav").getElementsByTagName("LI");
    for (var i=0; i<sfEls.length; i++) {
        sfEls[i].onmouseover=function() {
            this.className+=" sfhover";
        }
        sfEls[i].onmouseout=function() {
            this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
        }
    }
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

function confirmation(text, url) {
	var res = confirm(text);
    if (res) {
		parent.location = url;
        return false;
    } else {
        //parent.reload();
        return false;
    }
}

function print_preview(page) {
     myWindow = window.open(page, "tinyWindow", 'toolbar,width=550,height=500,scrollbars=yes,menubar=yes,status=no');
}

function pdf_version(page) {    
     myWindow = window.open(page, "tinyWindow", 'toolbar,menubar=no,resizable=yes,scrollbars=yes,status=no');
}

function edit_howto_category(old_value, category_id) {
    var new_value = prompt("Edit howto category name",old_value);
    if(new_value) {
        window.location='admin_howtos_categories.php?id=' + category_id + '&new_value=' + new_value;
    }
}

function bookmark_me(page_title) {
    if (document.all) {
        window.external.AddFavorite(window.location,'inode.gr, ' + page_title);
    } else {
        alert('Please press CTRL-D to bookmark this page');
    }
}

function image_popup(image_url) {
    window.open("image_popup.php?file="+ image_url, "", "resizable=1, height=400, width=400, left=20, top=20"); 
}

function manage_cities_popup() {
    window.open("admin_cities.php", "", "width=400, height=400, location=no, menubar=no, status=no, toolbar=no, scrollbars=yes, resizable=yes");
}

function kb_edit_relevant(id) {
    window.open("admin_kb_relevant.php?id=" + id, "", "width=400, height=400, location=no, menubar=no, status=no, toolbar=no, scrollbars=yes, resizable=yes");
}

function refresh_parent() {
    window.opener.location.reload();
    window.close();
}

function edit_city(city, id) {
    var new_city = prompt('Edit city?', city);
    if(new_city)
        window.location= 'admin_cities.php?id=' + id + '&new_city=' + new_city;
}