Select All Checkboxes By ID/Class

Question

I\'m really bad at Javascript and I\'m struggling to get my head round it.

What I\'m trying to do is get something to select all checkboxes. However everything I have fo

Answer 1

var array = document.getElementsByTagName("input");


for(var ii = 0; ii < array.length; ii++)
{

   if(array[ii].type == "checkbox")
   {
      if(array[ii].className == YOUR_CLASS_NAME)
       {
        array[ii].checked = true;

       }


   }
}

by ID:

var checkbox = document.getElementById(YOUR_ID);

if(null != checkbox)
    checkbox.checked = true;