JAVASCRIPT

javascript check all checkboxes on page

(function() {
    var aa= document.getElementsByTagName("input");
    for (var i =0; i < aa.length; i++){
        if (aa[i].type == 'checkbox')
            aa[i].checked = true;
    }
 })()

javascript check all checkboxes in page

(function() {
    var aa= document.getElementsByTagName("input");
    for (var i =0; i < aa.length; i++){
        if (aa[i].type == 'checkbox')
            aa[i].checked = true;
    }
})()