/* adds a function to the onload event handler */
function addLoadEvent(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function')
	{
		window.onload = func;
	}
	else
	{
		window.onload = function()
		{
			oldonload();
			func();
		}
	}
}

/*	Detects the browser */
function detectBrowser()
{
	var browser = navigator.appName;
	return browser;
}

var activeSectionMenu = null;
var activePageMenu = null;
var onSection = false;
var onPage = false;

setInterval("menuCleaner()",500);

function menuCleaner()
{
	if(onSection == false) deactivateSectionMenu();
	if(onPage == false) deactivatePageMenu();
}
	
function leftSection()
{
	onSection = false;
}

function leftPage()
{
	onPage = false;
}

function overPage()
{
	onPage = true;
}

function overSection()
{
	onSection = true;
}

function activateSectionMenu(submenuId)
{
	//debug("activate section: " + submenuId);
	
	if(activeSectionMenu != null) deactivateSectionMenu();
	
	var element = document.getElementById(submenuId);
	if(element == null){ return; } //If menu has no submenu
	
	if(detectBrowser() == "Microsoft Internet Explorer")
	{
		element.style.display = "block";
	}
	else
	{
		element.style.setProperty("display","block","");
	}
	
	onSection = true;
	activeSectionMenu = element;
}
	
function activatePageMenu(submenuId)
{
	if(activePageMenu != null) deactivatePageMenu();

	var element = document.getElementById(submenuId);
	if(element == null){ return; } //If submenu has no sub-submenu
	
	if(detectBrowser() == "Microsoft Internet Explorer")
	{
		element.style.display = "block";
	}
	else
	{
		element.style.setProperty("display","block","");
	}
	
	onPage = true;
	activePageMenu = element;
}

function deactivateSectionMenu()
{

	if(detectBrowser() == "Microsoft Internet Explorer")
	{
		if(activeSectionMenu != null) activeSectionMenu.style.display = "none";
	}
	else
	{
		if(activeSectionMenu != null) activeSectionMenu.style.setProperty("display","none","");
	}
}

function deactivatePageMenu()
{
	if(detectBrowser() == "Microsoft Internet Explorer")
	{
		if(activePageMenu != null){activePageMenu.style.display = "none";}
	}
	else
	{
		if(activePageMenu != null){activePageMenu.style.setProperty("display","none","");}
	}
}

function fix()
{

	var colcontent = document.getElementById("colcontent");
	var wrapper = document.getElementById("wrapper");
	
	var h = colcontent.scrollHeight;
	
	if(h<412) h = 412;
	
	h += 1;
	
	var prop = h+200+"px";
	
	
	if(detectBrowser() == "Microsoft Internet Explorer")
	{
		wrapper.style.height = prop;
	}
	else
	{
		wrapper.style.setProperty("height",prop,"");
	}
	
	//alert(prop);
}

function fixHeight()
{
	var wrapper = document.getElementById("wrapper");
	var container = document.getElementById("container");
	var h = container.scrollHeight;
	
	if(detectBrowser() == "Microsoft Internet Explorer")
	{
		wrapper.style.height = h+"px";
	}
	else
	{
		wrapper.style.setProperty("height",h+"px","");
	}
}

function doMarginBottom(marginBottom)
{
	var wrapper = document.getElementById("wrapper");
	
	if(detectBrowser() == "Microsoft Internet Explorer")
	{
		wrapper.style.marginBottom = marginBottom+"px";
	}
	else
	{
		wrapper.style.setProperty("margin-bottom",marginBottom+"px","");
	}
}

function changeClass(element,class_name)
{
	
	//Accept objects and id's of objects
	if(typeof(element) != "object")
		element = document.getElementById(element);
	
	element.className = class_name;
}