function hideAllNow() {
	classElements = document.getElementsByTagName('div');
	for (i=0;i<classElements.length;i++) if (classElements[i].className == 'visible') classElements[i].className = 'invisible';
}

function showElement(element) {
	if (menuTimeout) clearTimeout(menuTimeout);
	hideAllNow();
	document.getElementById(element).className = 'visible';
}

function hideAll() {
	menuTimeout = setTimeout("hideAllNow()",1000);
}

function setLocation(element,parent) { 
	element = document.getElementById(element);
	parentOffset = document.getElementById(parent).offsetLeft;
	element.style.left = parentOffset+'px';
}