/*

This script was created by Ian Lloyd (http://lloydi.com/). I'd appreciate it 
if you could keep this comment in the script if you choose to use it (albeit 
in an amended form.

The original blog entry relating to this can be found here: http://tinyurl.com/p9tqb.

The addEvent function comes courtesy of Scott Andrew: http://tinyurl.com/qcmrd

*/
function addEvent(elm, evType, fn, useCapture)
{
		if(elm.addEventListener)
		{
			elm.addEventListener(evType, fn, useCapture);
			return true;
		}
		else if (elm.attachEvent)
		{
			var r = elm.attachEvent('on' + evType, fn);
			return r;
		}
		else
		{
			elm['on' + evType] = fn;
		}
}

function addPrintLinks()
{
var el = document.getElementsByTagName("div");
for (i=0;i<el.length;i++)
	{
	if (el[i].className=="printableActivity")
		{

		var newLink = document.createElement("a");
		var newLinkText = document.createTextNode("print this");

		var newLinkPara = document.createElement("p");
		newLinkPara.setAttribute("class","printbutton");
		
		//set up the 'print this section' link
		newLink.setAttribute("href","#");
		var btId = "printbut_" + el[i].id;
		newLink.setAttribute("id",btId);
		newLink.appendChild(newLinkText);
		newLink.setAttribute("href","#");
		newLinkPara.appendChild(newLink);

		//add the behaviours for the new links
		newLink.onclick = togglePrintDisplay;
		newLink.onkeypress = togglePrintDisplay;

		//insert the para and the two links into the DOM
		//el[i].appendChild(newLinkPara);

		var cel = el[i].getElementsByTagName("div");
		for (j=0;j<cel.length;j++)
			{
			if (cel[j].className=="printButtonContainer")
				{
				cel[j].appendChild(newLinkPara);	
				}					
			}			


		
		}
	}
}

function togglePrintDisplay(e)
{
var whatSection = this.id.split("_");
whatSection = whatSection[1];
var el = document.getElementsByTagName("div");
for (i=0;i<el.length;i++)
	{
	if (el[i].className.indexOf("printableActivity")!=-1)
		{
		el[i].removeAttribute("className");
		if (el[i].id==whatSection)
			{
			//show only this section for print
			el[i].setAttribute("className","printableActivity print");
			el[i].setAttribute("class","printableActivity print");
			}
		else
			{
			//hide the sections from print-out
			el[i].setAttribute("className","printableActivity noprint");
			el[i].setAttribute("class","printableActivity noprint");
			}
		} 
	
	}

if (window.event) 
	{
	window.event.returnValue = false;
	window.event.cancelBubble = true;
	} 
else if (e) 
	{
	e.stopPropagation();
	e.preventDefault();
	}

window.print();
}

function printAll(e)
{
var el = document.getElementsByTagName("div");
for (i=0;i<el.length;i++)
	{
	if (el[i].className.indexOf("printableActivity")!=-1)
		{
		el[i].setAttribute("className","printableActivity print");
		el[i].setAttribute("class","printableActivity print");
		}
	}
if (window.event) 
	{
	window.event.returnValue = false;
	window.event.cancelBubble = true;
	} 
else if (e) 
	{
	e.stopPropagation();
	e.preventDefault();
	}
window.print();
}
addEvent(window, 'load', addPrintLinks, false);