function Check_one(check,state) {
	var checkbox = document.getElementById(check);
	if(checkbox.type == 'checkbox') {
		checkbox.checked = state;
	}
	return true;
}


function Check_all(check,state) {
	var checkboxes = document.getElementsByName(check);
	for (i=0; i<checkboxes.length; i++) {
		if(checkboxes[i].type == 'checkbox') {
			checkboxes[i].checked = state;
		}
	}
	return true;
}


function Select_all(selectid) {
	var selectnode = document.getElementById(selectid);
	var nbopts = selectnode.options.length;
	for (a = 0; a < nbopts; a++) {
		selectnode.options[a].selected = true;
	}
}