javascript method

Question

This coding how to change javascript language .Any one plz help me.

 

 

 

protected void chkboxproject_CheckedChanged(object sender, EventArgs e)

{
if (chkboxproject.Checked == true)
{
Label1.Text = "All Projects";
}
else
{
int numSelected = 0;
foreach (ListItem li in chkprojects.Items)
{
if (li.Selected)
{
numSelected = numSelected + 1;
}
Label1.Text = Convert.ToString(numSelected);
}


}
}