/* ===========================================================================
 * SCHEDULE THE BEHAVIOURS
 * =========================================================================== 
 */

 
attachEventListener(window, "resize", resizePage, false);
attachEventListener(window, "load", initPage, false);
attachEventListener(window, "unload", unloadPage, false);

function initPage() 
{	
	initLinks();
	initMenu();
}

function resizePage()
{
	
}

function unloadPage() 
{

}





function initLinks()
{
	if (!document.getElementsByTagName) 
 		return;
 		
 	var b = document.getElementsByTagName("body");
 	theBody = b[0];
 	if(theBody.className.match("popup"))
 	{
	 	is_popup=true;
 		 window.focus();
	}
 
 	var anchors = document.getElementsByTagName("a");
 	for (var i=0; i<anchors.length; i++) 
 	{
   		var anchor = anchors[i];
   		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external")
   		{
     		anchor.target = "_blank";
 		}	
     	else if (anchor.className.match("print")) 
     	{
        	anchor.onclick = function() 
        	{
          		printPage();
          		return false;
        	};
    	}
    	else if (anchor.className.match("window")) 
     	{
        	anchor.onclick = function() 
        	{
          		popUp(this.getAttribute("href"));
          		return false;
        	};
    	}
    	else if (anchor.className.match("file")) 
     	{
        	anchor.onclick = function() 
        	{
          		window.open(this.getAttribute("href"));
          		return false;
        	};
    	}
    	else if (anchor.className.match("close")) 
     	{
        	anchor.onclick = function() 
        	{
          		window.close();
          		return false;
        	};
    	}
 	}
}




function initMenu() 
{
	var nav = document.getElementById("navigation");
	
	if(nav != null)
	{
		var listItems = nav.getElementsByTagName("li");
	
		for (var i=0; i<listItems.length; i++) 
		{
			listItems[i].onmouseover=function() 
			{
				if(this.className == "")
					this.className="hover";
				else
					this.className+=" hover";
			}
			
			listItems[i].onmouseout=function() 
			{
				this.className=this.className.replace(new RegExp(" hover\\b"), "");
				this.className=this.className.replace(new RegExp("hover\\b"), "");
			}
			
			listItems[i].onfocus=function() 
			{
				if(this.className == "")
					this.className="hover";
				else
					this.className+=" hover";
			}
			
			listItems[i].onblur=function() 
			{
				this.className=this.className.replace(new RegExp(" hover\\b"), "");
				this.className=this.className.replace(new RegExp("hover\\b"), "");
			}
		}
	}
}


/* http://www.themaninblue.com/experiment/ResolutionLayout/ */
function checkBrowserWidth()
{
	
	var theWidth = getBrowserWidth();
	
	if (theWidth == 0)
	{
		var resolutionCookie = document.cookie.match(/(^|;)res_layout[^;]*(;|$)/);

		if (resolutionCookie != null)
		{
			setStylesheet(unescape(resolutionCookie[0].split("=")[1]));
		}
		
		addLoadListener(checkBrowserWidth);
		
		return false;
	}

	if (theWidth <= 920)
	{
		setStylesheet("Small screen");
		document.cookie = "res_layout=" + escape("Small screen");
	}
	else
	{
		setStylesheet("");
		document.cookie = "res_layout=";
	}
			
	return true;
};




function getBrowserWidth()
{
	if (window.innerWidth)
	{
		return window.innerWidth;
	}
	else if (document.documentElement && document.documentElement.clientWidth != 0)
	{
		return document.documentElement.clientWidth;
	}
	else if (document.body)
	{
		return document.body.clientWidth;
	}
	
	return 0;
};




function setStylesheet(styleTitle)
{
	var currTag;

	if (document.getElementsByTagName)
	{
		for (var i = 0; (currTag = document.getElementsByTagName("link")[i]); i++)
		{
			if (currTag.getAttribute("rel").indexOf("style") != -1 && currTag.getAttribute("title"))
			{
				currTag.disabled = true;

				if(currTag.getAttribute("title") == styleTitle)
				{
					currTag.disabled = false;
				}
			}
		}
	}
	
	return true;
};



/* The JavaScript Anthology - James Edwards & Cameron Adams */
function attachEventListener(target, eventType, functionRef, capture)
{
	if (typeof target.addEventListener != "undefined")
	{ 
		target.addEventListener(eventType, functionRef, capture);
	}
	else if (typeof target.attachEvent != "undefined")
	{
		var functionString = eventType + functionRef;
		target["e" + functionString] = functionRef;
		target[functionString] = function(event)
		{
			if(typeof event == "undefined")
			{
				event = window.event
			};

			target["e" + functionString](event);
        };
		target.attachEvent("on" + eventType, target[functionString]);
	}
	else
	{
		eventType = "on" + eventType;

		if (typeof target[eventType] == "function")
		{
			var oldListener = target[eventType];
			target[eventType] = function()
			{
				oldListener();
				return functionRef();
			}
		}
		else
		{
			target[eventType] = functionRef;
		}
	}

	return true;
};