// Javascript from Moodle modules /** * JavaScript for checking or unchecking * all the students or all students in a group. * * @param toggle Check All/None * @param start the first checkbox to be changed * @param end the last checkbox to be changed * return boolean **/ function block_quickmail_toggle(toggle, start, end) { // Element ID var id = 'mailto'+start; // iterate through all of the appropriate checkboxes and change their state while(document.getElementById(id) && start != end) { document.getElementById(id).checked = toggle; start++; id = 'mailto'+start; } return false; }