/* Home front javascript file */
window.addEvent('domready', function(){

	var positions = new Array();
		
	$$('#subject_letters a').each(function(el, index){
		var letter = el.title.toLowerCase();
		if ($('subjects_' + letter)) {
			positions[letter] = ($('subjects_' + letter).getPosition().y - $('subject_list').getPosition().y);
			el.addEvent('click', function(e){
				new Event(e).stop();
				$('subject_list').scrollTo(0, positions[letter]);
			});
		}
		else{
			el.addClass('disabled')
			el.addEvent('click', function(e){
				new Event(e).stop();
			});
		}
	});

});