How to get a count of all checked checkboxes on a page
Using jQuery:
var cbs = $("input:checkbox"); //find all checkboxesvar nbCbs = cbs.length; //the number of checkboxesvar checked = $("input[@type=checkbox]:checked"); //find all checked checkboxes + radio buttonsvar nbChecked = checked.length;Using JavaScript:
var inputs = document.getElementsByTagName("input"); //or document.forms[0].elements;var cbs = []; //will contain all checkboxesvar checked = []; //will contain all checked checkboxesfor (var i = 0; i < inputs.length; i++) { if (inputs[i].type == "checkbox") { cbs.push(inputs[i]); if (inputs[i].checked) { checked.push(inputs[i]); } }}var nbCbs = cbs.length; //number of checkboxesvar nbChecked = checked.length; //number of checked checkboxes