function CheckCheckAll() {
var TotalBoxes = 0;
var TotalOn = 0;
for (var i=0;i<document.form.elements.length;i++) {
var e = document.form.elements[i];
if ((e.name != 'allbox') && (e.type=='checkbox')) {
TotalBoxes++;
if (e.checked) {
TotalOn++;
}
}
}
if (TotalBoxes==TotalOn) {
document.form.allbox.checked=true;
} else {
document.form.allbox.checked=false;
}
}