function isEmpty(s) {
	for(var i = 0; i < s.length; i++) {
		var c = s.charAt(i);
		if((c != ' ') && (c != '\\n') && (c != '\\t')) return false;
	}
	return true;
}

function checkAll(field) {
	for(var x = 0; x < document.cccForm.elements.length; x++) { 
		var y = document.cccForm.elements[x];
 		if(y.name == field) y.checked = document.cccForm.toggle.checked;
  }
}