function scroll(id) {
	if (document.getElementById(id).style.display == 'none') 
		document.getElementById(id).style.display = ''
	else
		document.getElementById(id).style.display = 'none'
}

function LTrim(Str) {
	return Str.replace(/^\s+/, '');
}

//------------------------------------------------
// Function Name : RTrim 
// Actions : Remove right space.
//------------------------------------------------
function RTrim(Str) {
	return Str.replace(/\s+$/, '');
}

//------------------------------------------------
// Function Name : Trim 
// Actions : Remove left&right space.
//------------------------------------------------
function Trim(Str) {
	return RTrim(LTrim(Str));
}

function checkSearch(f) {
	
	var keys;
	var keys_lower;
	var keys_upper;
	f.action = '';
	keys = Trim(f.k.value);
	if (keys!='') {
	 	f.k.value = keys;
		keys_lower = keys.toLowerCase();
		f.l.value = keys_lower;
		keys_upper = keys.toUpperCase();
		f.u.value = keys_upper;
		f.action = '?module=search';
		return true; 
	}
	f.action = '';
	return false;
}