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background.js
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background.js
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function checkAll()
{
var checkBox = document.querySelectorAll("input[type='checkbox']");
for (var i = 0; i < checkBox.length; i++)
{
checkBox[i].checked = true;
}
}
checkAll()
function AddCheckBox()
{
// Get Name
var studentName = document.getElementById('newName').value
// Show the name
var newName = document.createElement("textName");
var t = document.createTextNode(studentName);
newName.appendChild(t);
var breakLine = document.createElement("br");
// Create CheckBox
var newCheckBox = document.createElement("INPUT");
newCheckBox.setAttribute("type", "checkbox");
newCheckBox.setAttribute("name", studentName);
var listOfStudents = document.getElementById("ClassRoom");
listOfStudents.appendChild(newCheckBox);
listOfStudents.appendChild(newName);
listOfStudents.appendChild(breakLine);
}
function checkPersonInTheBox(sel)
{
var studentName = document.getElementById('newName').value;
checkPerson(studentName,sel);
}
function checkPerson(name, sel)
{
checkboxes = document.getElementsByName(name);
for(var i=0, n=checkboxes.length;i<n;i++) {
checkboxes[i].checked = sel;
}
}
AddCheckBox()