$(document).ready(function(){
	var path = 'assets/javascript/sharethispage/'; // Set to the path of the directory containing the shareThisPage files
	
	$('#shareThisPage').html('<h3>Share this page</h3><div id="shareThisPagePopUp"><p id="shareThisPageClose">X</p><p>Share this page on these sites.<br /><a href="http://www.nls.uk/about-us/social-networking#bookmark">Read more</a></p><ul><li id="facebook"><a onclick="return facebook_popup()" title="Share this page on Facebook"><img src="'+path+'skin/facebook_off.png" height="24" width="24" alt="Share this page on Facebook" /></a></li><li id="twitter"><a onclick="return twitter_popup()" title="Share this page on Twitter"><img src="'+path+'skin/twitter_off.png" height="24" width="24" alt="Share this page on Twitter" /></a></li><li id="delicious"><a onclick="return delicious_popup()" title="Share this page on Delicious"><img src="'+path+'skin/delicious_off.png" height="24" width="24" alt="Share this page on Delicious" /></a></li><li id="digg"><a onclick="return digg_popup()" title="Share this page on Digg"><img src="'+path+'skin/digg_off.png" height="24" width="24" alt="Share this page on Digg" /></a></li><li id="stumbleupon"><a onclick="return stumbleupon_popup()" title="Share this page on Stumbleupon"><img src="'+path+'skin/stumbleupon_off.png" height="24" width="24" alt="Share this page on Stumbleupon" /></a></li><li id="email"><a href="mailto:?body='+encodeURIComponent(location.href)+'&subject='+encodeURIComponent(document.title)+'" title="Share this page by email"><img src="'+path+'skin/email_off.png" height="24" width="24" alt="Share this page by email" /></a></li></ul></div>');
	$('#shareThisPage').toggle();
	$('#shareThisPage').click(
		function () {
			var shareThisPage = $('#shareThisPage');
			var shareThisPagePopUp = $('#shareThisPagePopUp');
			var shareThisPagePopUpHTML = shareThisPagePopUp.html();
			var shareThisPageOffset = shareThisPage.offset();
			var spaceAbove = shareThisPageOffset.top;
			var spaceBelow = $(window).height()-(shareThisPageOffset.top+20);
			var shareThisPagePopUp = $('#shareThisPagePopUp');
			var shareThisPagePopUpHeight = shareThisPagePopUp.height();
			if ((shareThisPagePopUpHeight<=spaceBelow && shareThisPagePopUpHTML.substring(0,27)!='<span class="above"></span>') || (shareThisPagePopUpHeight > spaceBelow && shareThisPagePopUpHeight > spaceAbove && shareThisPagePopUpHTML.substring(0,27)!='<span class="above"></span>')) {shareThisPagePopUp.prepend('<span class="above"></span>'); shareThisPagePopUp.css("top","20px");}
			else if (shareThisPagePopUpHeight <= spaceAbove && shareThisPagePopUpHTML.substring(shareThisPagePopUpHTML.length-27,shareThisPagePopUpHTML.length)!='<span class="below"></span>' && shareThisPagePopUpHTML.substring(0,27)!='<span class="above"></span>') {shareThisPagePopUp.append('<span class="below"></span>'); shareThisPagePopUp.css("bottom","20px");}
			$('#shareThisPagePopUp').toggle();
		}
	);
	$('#shareThisPage img').hover(
		function () {var src = $(this).attr('src'); var srcNew = src.replace('_off','_on'); $(this).attr('src', srcNew);},
		function () {var src = $(this).attr('src'); var srcNew = src.replace('_on','_off'); $(this).attr('src', srcNew);}
	);
});

function facebook_popup() {window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(location.href)+'&t='+encodeURIComponent(document.title),'sharer','toolbar=0,status=0,width=650,height=450'); return false;}
function twitter_popup() {window.open('http://twitter.com/intent/tweet?text=I+like+'+encodeURIComponent(location.href)+'&title='+encodeURIComponent(document.title),'sharer','toolbar=0,status=0,width=650,height=450'); return false;}
function delicious_popup() {window.open('http://del.icio.us/post?v=4&noui&jump=close&url='+encodeURIComponent(location.href)+'&title='+encodeURIComponent(document.title),'sharer','toolbar=0,status=0,width=650,height=450'); return false;}
function digg_popup() {window.open('http://digg.com/submit?phase=2&url='+encodeURIComponent(location.href),'sharer','toolbar=0,status=0,width=650,height=450'); return false;}
function stumbleupon_popup() {window.open('http://www.stumbleupon.com/submit?url='+encodeURIComponent(location.href)+'&title='+encodeURIComponent(document.title),'sharer','toolbar=0,status=0,width=650,height=450'); return false;}