function btnToggle(controlId, lblCol, lblExp) {
	var state = "";
	var obj = "";
	state = document.getElementById(controlId+'fv');
	obj = document.getElementById(controlId+'btn');
	
	if (state != "") {
		if (state.value == "TRUE") {
			state.value="FALSE";
			if (obj != "") {
				obj.title = lblExp;
				obj.childNodes[0].nodeValue = lblExp;
			}
			return false;
		}
		state.value = "TRUE";
		if (obj != "") {
			obj.title = lblCol;
			obj.childNodes[0].nodeValue = lblCol;
		}
	}
	return true;
}