//window.onload = dmenu;

function dmenu(id) {
	var d = document.getElementById('smenu' + id);

	for (var i=1; i<=menuArr; i++) {
		if (document.getElementById('smenu'+i)) {document.getElementById('smenu'+i).style.display = 'none';}
	}

	if (d) d.style.display = 'block';
}


function collapseMenu(imgElement, subChildrenID, InternetRoot) {
	childrenElement = document.getElementById(subChildrenID);
	var show = (childrenElement.style.display == 'none');

	if (show) {
		childrenElement.style.display = 'block';
		imgElement.src = InternetRoot + '_data/img/minus_s.gif';

	} else {
		childrenElement.style.display = 'none';
		imgElement.src = InternetRoot + '_data/img/plus_s.gif';
	}
}

// Hack for incompatibility of IE and Firefox:
//   on double click FireFox fires two onclick events and one ondblclick event
//   while IE fires one onclick event and one ondblclick event
var selectAllChildrenLastClickedID;
var selectAllChildrenClickedCount;

function selectAllChildrenSingleClick(myCheckbox) {
	if (selectAllChildrenLastClickedID == myCheckbox.id) {
		selectAllChildrenClickedCount++;

	} else {
		selectAllChildrenLastClickedID = myCheckbox.id;
		selectAllChildrenClickedCount = 1;
	}
}


function selectAllChildren(myCheckbox, childrenID) {
	if (selectAllChildrenLastClickedID == myCheckbox.id) {
		targetSettings = ((selectAllChildrenClickedCount % 2) == 0)
			? !myCheckbox.checked : myCheckbox.checked;

	} else {
		targetSettings = ! myCheckbox.checked;
	}

	myCheckbox.checked = targetSettings;
	selectAllChildrenClickedCount = 0;

	if ((childrenTag = document.getElementById(childrenID)) === null) {
		return;
	}

	checkBoxes = childrenTag.getElementsByTagName('input');
	for (i=0; i<checkBoxes.length; i++) {
		if (checkBoxes[i].type == 'checkbox') {
			checkBoxes[i].checked = myCheckbox.checked;
		}
	}
}