var timerId = null;

function mnuOpen() {
    var curCoord = $("#panel1").offset();
    timerStop();
    $("#panel1").slideDown('slow');
}

function mnuClose() {
    timerId = null;
    $("#panel1").slideUp('fast');
}
function timerStart() {
    timerId = window.setTimeout(mnuClose, 200);
}
function timerStop() {
    if (timerId == null) return;
    window.clearTimeout(timerId);
    timerId = null;
}
function ltrim(str) {
	var ptrn = /\s*((\S+\s*)*)/;
	return str.replace(ptrn, "$1");
}
function rtrim(str) {
	var ptrn = /((\s*\S+)*)\s*/;
	return str.replace(ptrn, "$1");
}
function trim(str) {
    return ltrim(rtrim(str));
}