function showSubMenu(parent, id)
{
	menuItemHide = false;
	if (menuItemCurrent && menuItemCurrent.id == "menuitem" + id)
		return;
	if (menuItemCurrent)
	{
		if (menuItemCurrent.filters && menuItemCurrent.filters.length)
			menuItemCurrent.filters[0].apply();
		menuItemCurrent.style.visibility = "hidden";
		if (menuItemCurrent.filters && menuItemCurrent.filters.length)
			menuItemCurrent.filters[0].play();
	}
	var item = document.getElementById("menuitem" + id);
	if (!item) return;
	var isRtl = document.body.style.direction == "rtl";
	item.style.top = _offsetTop(parent) - 1;
	item.style.left = _offsetLeft(parent) - (isRtl ? item.offsetWidth - 30 : -parent.offsetWidth + 30);
	if (item.filters && item.filters.length)
		item.filters[0].apply();
	item.style.visibility = "visible";
	if (item.filters && item.filters.length)
		item.filters[0].play();
	menuItemCurrent = item;
}
function hideSubMenu()
{
	if (!menuItemHide)
		return;
	if (menuItemCurrent.filters && menuItemCurrent.filters.length)
		menuItemCurrent.filters[0].apply();
	menuItemCurrent.style.visibility = "hidden";
	if (menuItemCurrent.filters && menuItemCurrent.filters.length)
		menuItemCurrent.filters[0].play();
	menuItemCurrent = null;
	menuItemHide = false;
}
var menuItemCurrent = null;
var menuItemHide = false;
var globalEvent;

function _offsetTop(obj)
{
	var top = 0;
	for (; obj; obj=obj.offsetParent)
		top += obj.offsetTop;
	return top;
}

function _offsetLeft(obj)
{
	var left = 0;
	for (; obj && obj != document.body; obj=obj.offsetParent)
		left += obj.offsetLeft;
	return left;
}

// returns true if node a contains event.toElement/relatedTarget.
function containsToElement(a)
{
	var b = globalEvent.toElement ? globalEvent.toElement : globalEvent.relatedTarget;
	while (b.parentNode)
		if ((b = b.parentNode) == a)
			return true;
	return false;
}

/*
	Validate a form's elements according to varius attributes
*/
function validateForm(form, title, submit)
{
	var i, j, u, sum;
	var input;
	var valid;
	var sErrorMsg = "";

	for (i=0; i<form.elements.length; i++)
	{
		input = form.elements[i];
		// skip input when it's not rendered (ie. parent display:none)
		if (input.offsetHeight == 0) continue;
		valid = true;

		// Validate value according to element type and validation type
		switch (input.type.toLowerCase())
		{
		case "text":
		case "password":
		case "textarea":
		case "file":
			if (!input.getAttribute("validation"))
				input.setAttribute("validation", "string");
			if (input.getAttribute("mandatory"))
			{
				if (input.getAttribute("mandatory").toLowerCase() != "true" && input.value.length == 0)
					continue;
			}
			else
				if (input.value.length == 0)
					continue;
			switch (input.getAttribute("validation").toLowerCase())
			{
			case "string":
			case "password":
				if (input.value.length == 0)
					valid = false;
				break;
			case "integer":
				if (!/\d+/.test(input.value))
					valid = false;
				break;
			case "email":
				if (!/^[\w\.\-]+@[\w\-]+(\.\w+)+$/.test(input.value))
					valid = false;
				break;
			case "phone":
				if (!/^\+?\d+(-\d+)*$/.test(input.value))
					valid = false;
				break;
			case "id":
				j = input.value.toString();
				input.value = j.replace(/\D/g, "");
				if (/\d+/.test(input.value))
				{
					sum = 0;
					for (j=0; j<input.value.length; j++)
					{
						u = (j % 2 ? 2 : 1) * parseInt(input.value.charAt(input.value.length - j - 1));
						sum += u > 9 ? Math.floor(u / 10) + u % 10 : u;
					}
					if (sum % 10) valid = false;
				}
				else
					valid = false;
				break;
			case "compare":
				// Check the compareInput attribute
				if (input.getAttribute("compareInput"))
					if (input.value != form.elements[input.getAttribute("compareInput")].value)
						valid = false;
				break;
			default:
				var regExp = new RegExp(input.getAttribute("validation"), "im");
				valid = regExp.test(input.value);
			}

			// Validate max and min according to validation type
			if (valid == true)
			{
				switch (input.getAttribute("validation").toLowerCase())
				{
				case "integer":
					if (input.getAttribute("validmax"))
					{
						if (parseInt(input.value) > parseInt(input.getAttribute("validmax")))
							valid = false;
					}
					if (input.getAttribute("validmin"))
					{
						if (parseInt(input.value) < parseInt(input.getAttribute("validmin")))
							valid = false;
					}
					break;
				default:
					if (input.getAttribute("validmax"))
					{
						if (input.value.length > input.getAttribute("validmax")) valid = false;
					}
					if (input.getAttribute("validmin"))
					{
						if (input.value.length < input.getAttribute("validmin")) valid = false;
					}
					break;
				}
			}
			break;
		case "select-one":
			if (input.getAttribute("mandatory"))
				if (input.selectedIndex == 0)
					valid = false;
			break;
		case "select-multiple":
			if (input.getAttribute("mandatory"))
			{
				sum = 0;
				for (j=0; j<input.options.length; j++)
				{
					if (input.options[j].selected) sum++;
				}
				if ((!input.getAttribute("validmax")) && (!input.getAttribute("validmin")))
				{
					if (sum == 0) valid = false;
				}
				else
				{
					if (input.getAttribute("validmax"))
					{
						if (sum > input.getAttribute("validmax")) valid = false;
					}
					if (input.getAttribute("validmin"))
					{
						if (sum < input.getAttribute("validmin")) valid = false;
					}
				}
			}
			break;
		case "checkbox":
			if (input.getAttribute("mandatory"))
				valid = input.checked;
			break;
		}

		if (!valid)
		{
			if (input.getAttribute("validationError"))
				sErrorMsg += input.getAttribute("validationError") + "\n";
			else
				sErrorMsg += "Error in field " + input.name + "\n";
		}
	}
	if (sErrorMsg.length)
	{
		alert((title ? title + "\n" : "") + sErrorMsg);
		return false;
	}
	else
	{
		if (submit)
			form.submit();
		return true;
	}
}