/* 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 hideframe(hideThumbs)
{
	var tvframeon = document.getElementById("tvframeon");
	var tvframeoff = document.getElementById("tvframeoff");
	
	
	if(hideThumbs)
	{
		if(detectBrowser() == "Microsoft Internet Explorer")
		{
			tvframeon.style.display = "none";
			tvframeoff.style.display = "block";
			document.cookie="tvsponsor=0;expires=toGMTString(1);";
		}
		else
		{
			tvframeon.style.setProperty("display","none","");
			tvframeoff.style.setProperty("display","block","");
			document.cookie="tvsponsor=0;expires=toGMTString(1);";
		}
	}
	
	else
	{
		if(detectBrowser() == "Microsoft Internet Explorer")
		{
			tvframeon.style.display = "block";
			tvframeoff.style.display = "none";
			document.cookie="tvsponsor=1;expires=toGMTString(1);";
		}
		else
		{
			tvframeon.style.setProperty("display","block","");
			tvframeoff.style.setProperty("display","none","");
			document.cookie="tvsponsor=1;expires=toGMTString(1);";
		}
	}
}

/*function fixSubPageColumnsHeights()
{
	return;
	
	var content = document.getElementById("contentArea");
	var menu = document.getElementById("menu_inner");
	
	var highest = 0;

	var nums = new Array()
	nums[0] = content.scrollHeight;
	nums[1] = menu.scrollHeight;
	
	for(var i=0;i<nums.length;i++)
	{
		alert(nums[i]);
		if(nums[i] > highest) highest = nums[i];
	}
	
	if(detectBrowser() == "Microsoft Internet Explorer")
	{
		content.style.height = highest+"px";
		menu.style.height = highest+"px";
	}
	else
	{
		content.style.setProperty("height",highest+"px","");
		menu.style.setProperty("height",highest+"px","");
	}
}
 */
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;
}