var shownDropDown = null;
var hideDropDownTimeout = 0;

function showDropDown(dropDownId, triggerLink) {

	if(document.getElementById(dropDownId).style.display != 'block'){
		cancelHideDropDown();
		doHideDropDown();
		shownDropDown = document.getElementById(dropDownId);
		shownDropDown.style.display = 'block';
		//shownDropDown.onmouseout = triggerLink.onmouseout = hideDropDown;
		//shownDropDown.onmouseover = cancelHideDropDown;
	}else{
		document.getElementById(dropDownId).style.display = 'none'
	}
	
	
}

function hideDropDown() {
	hideDropDownTimeout = setTimeout(doHideDropDown, 200);
}

function cancelHideDropDown() {
	clearTimeout(hideDropDownTimeout);
}

function doHideDropDown() {
	if (shownDropDown) {
		shownDropDown.style.display = 'none';
		//MM_swapImgRestore();
	}
}