function resetLine(line){
	
	var checkboxes = $$('#matrixTR_'+line+' input[type=checkbox]');
	var cbControl = $('matrixRST_'+line);
	
	if(cbControl.checked) {
		checkboxes.each(function(box){
			box.checked = !cbControl.checked;
		});
		cbControl.checked = true;
	} else
		cbControl.checked = false;

}

function resetGroup(ident, rstID){
	
	var checkboxes = $$('#qLineTD_'+ident+' input[type=checkbox]');
	var cbControl = $(rstID);
	
	if(cbControl.checked) {
		checkboxes.each(function(box){
			box.checked = false;
			box.disabled = true;
		});
		cbControl.checked = true;
		cbControl.disabled =false;
	} else {
		checkboxes.each(function(box){
			box.disabled = false;
		});
		cbControl.checked = false;
	}
		
}