/*
 * 
 * jFontSizer Plugin
 * Written by fluidByte - http://www.fluidbyte.net
 * 
 * 
 */

; (function($) {

	jQuery.fn.jfontsizer = function(o) {

		// Cookie functions
		function setCookie(c_name,value,expiredays){
		var exdate=new Date();
		exdate.setDate(exdate.getDate()+expiredays);
		document.cookie=c_name+ "=" +escape(value)+
		((expiredays==null) ? "" : ";expires="+exdate.toGMTString()) +
		";path=/";
		}
		
		function getCookie(c_name){
		if (document.cookie.length>0){
		  c_start=document.cookie.indexOf(c_name + "=");
		  if (c_start!=-1){
		    c_start=c_start + c_name.length+1;
		    c_end=document.cookie.indexOf(";",c_start);
		    if (c_end==-1) c_end=document.cookie.length;
		    return unescape(document.cookie.substring(c_start,c_end));
		    }
		  }
		return "";
		}

	    
		// Defaults
		var o = jQuery.extend( {
			applyTo: 'body',
			changesmall: '2',
			changelarge: '2',
			changeSmallTooltip: 'Small',
			changeLargeTooltip: 'Large',
			changeMediumTooltip: 'Medium',
			expire: 30
		},o);
		
		var s = '';
		var m = '';
		var l = '';
		
		// Current
		var c = 'fs_med';
		
		// Check cookie  
		if (getCookie('fsizer') != "") {
			var c = getCookie('fsizer');
			switch (c) {
				case 'fs_sml':
					s = 'fsactive';
				$(o.applyTo).css('font-size','.'+(10-o.changesmall)+'em');
					break;
				case 'fs_med':
					m = 'fsactive';
				$(o.applyTo).css('font-size','1em');
					break;
				case 'fs_lrg':
					l = 'fsactive';
				$(o.applyTo).css('font-size','1.'+o.changelarge+'em');
					break;
			}
		}
		else {
			m = "fsactive";
		}

		// Create font-chooser box

		$(this).html('<div class="fsizer"><a id="fs_sml" title="' + o.changeSmallTooltip + '" class="' + s + '">A</a><a id="fs_med" title="' + o.changeMediumTooltip + '" class="' + m + '">A</a><a id="fs_lrg" title="' + o.changeLargeTooltip + '" class="' + l + '">A</a></div>');
		
		
		$('.fsizer a').click(function(){
		
			var t = $(this).attr('id');
			
			setCookie('fsizer',t,o.expire);
			
			$('.fsizer a').removeClass('fsactive');
			$(this).addClass('fsactive');
			
			var f = $(o.applyTo).css('font-size');	
			
			switch(t){
				case 'fs_sml':
					$(o.applyTo).css('font-size','.'+(10-o.changesmall)+'em');
					break;
				case 'fs_med':
				    $(o.applyTo).css('font-size','1em');
					break;
				case 'fs_lrg':
					$(o.applyTo).css('font-size','1.'+o.changelarge+'em');
					break;
			}	
		});
	};

})(jQuery);