//========== generic =========
function showHide(obj, display){
	var obj = document.getElementById(obj);
	if(!obj) return;
	if(obj.style.display=='block') obj.style.display='none';
	else if(obj.style.display=='none') obj.style.display='block';
	else obj.style.display=display;
}
function uncheckedAll(obj){
	var obj  = document.getElementsByName(obj);
	for(var i=0;i<obj.length; i++){
		obj[i].checked = false;
	}
}
function Submit(form){
	var form = document[form];
		if(form['bt_submit']) form.removeChild(form['bt_submit']);
	var newElement = document.createElement('input');
		newElement.setAttribute('id', 	'bt_submit');
		newElement.setAttribute('name', 'bt_submit');
		newElement.setAttribute('type', 'submit');
		newElement.style.display='none';
		form.appendChild(newElement);
	newElement.click();
}