(function(){
	var stylesheet;
	var textsize;
	jQuery(document).ready(function(){
		stylesheet = readCookie('stylesheet')  === null ? 'graphics' : readCookie('stylesheet');
		textsize = readCookie('textsize') === null ? 'medium' : readCookie('textsize');
		document.getElementById('css_textonly').disabled = true;
					
		jQuery('#graphics').click(function(event){
			event.preventDefault();
			document.getElementById('css_graphics').disabled = false;
			document.getElementById('css_textonly').disabled = true;
			stylesheet = 'graphics';
		});
		
		jQuery('#textonly').click(function(event){
			event.preventDefault();
			document.getElementById('css_graphics').disabled = true;
			document.getElementById('css_textonly').disabled = false;
			stylesheet = 'textonly';
		});
		
		jQuery('#text_largest').click(function(event){
			event.preventDefault();
			jQuery('html').css({ fontSize : '120%' });
			textsize = 'largest';
		});
		
		jQuery('#text_larger').click(function(event){
			event.preventDefault();
			jQuery('html').css({ fontSize : '110%' });
			textsize = 'larger';
		});
		
		jQuery('#text_medium').click(function(event){
			event.preventDefault();
			jQuery('html').css({ fontSize : '100%' });
			textsize = 'medium';
		});
		
		jQuery('#' + stylesheet).trigger('click');
		jQuery('#text_' + textsize).trigger('click');
	});
	
	jQuery(window).unload(function(){
		createCookie('stylesheet', stylesheet, 365);
		createCookie('textsize', textsize, 365);
	});
	

	function createCookie(name,value,days) {
	  if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	  }
	  else expires = "";
	  document.cookie = name+"="+value+expires+"; path=/";
	}

	function readCookie(name) {
	  var nameEQ = name + "=";
	  var ca = document.cookie.split(';');
	  for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	  }
	  return null;
	}
})();