function confirmSubmit() {
	var agree=confirm("Are you sure you wish to continue?");
	if (agree)
		return true ;
	else
		return false ;
}

function subDisable(form,element) {
	form.submit();
	form.elements[element].disabled=true;
}

function subConfirmDisable(form,element) {
	var agree=confirm("Are you sure you wish to continue?");
	if (agree) {
		form.submit();
		form.elements[element].disabled=true;
	}
}