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

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());
	}
	
	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',
		expire: 30
	},o);
	
	// Current
	curr = '';
	// Check cookie  
	if (getCookie('fsizer') != "") {
		var c = getCookie('fsizer');

		switch (c) {
			case 'fs_sml':
			curr = 'BtnCon';
			$('#fs_sml').addClass('BtnCon');
			$(o.applyTo).css('font-size','.'+(10-o.changesmall)+'em');
				break;
			case 'fs_med':
			curr = 'BtnDon';
			$('#fs_med').addClass('BtnDon');
			$(o.applyTo).css('font-size','1em');
				break;
			case 'fs_lrg':
			curr = 'BtnEon';
			$('#fs_lrg').addClass('BtnEon');
			$(o.applyTo).css('font-size','1.'+o.changelarge+'em');
				break;
		}
	}
	else {
		curr = 'BtnDon';
		$('#fs_med').addClass('BtnDon');
	}
//	alert($(this).attr('id'));
//	$(this).addClass();
	// Create font-chooser box
//	$(this).html('<div class="fsizer"><a id="fs_sml" class="'+s+'">A</a><a id="fs_med" class="'+m+'">A</a><a id="fs_lrg" class="'+l+'">A</a><br style="clear: both" /></div>');
	
	var tid = $(this).attr('id');
	$('#'+tid+' a').click(function(){
		var t = $(this).attr('id');
		setCookie('fsizer',t,o.expire);
		//alert(curr);
		$('#'+tid+' a').removeClass(curr);
		//$(this).addClass('fsactive');
		
		var f = $(o.applyTo).css('font-size');			
		switch(t){
			case 'fs_sml':
				curr = 'BtnCon';
				$('#fs_sml').addClass('BtnCon');
				$(o.applyTo).css('font-size','.'+(10-o.changesmall)+'em');
				break;
			case 'fs_med':
				curr = 'BtnDon';
				$('#fs_med').addClass('BtnDon');
			    $(o.applyTo).css('font-size','1em');
				break;
			case 'fs_lrg':
				curr = 'BtnEon';
				$('#fs_lrg').addClass('BtnEon');
				$(o.applyTo).css('font-size','1.'+o.changelarge+'em');
				break;
		}	
	});
};