/**
 * Cookie plugin
 *
 * Copyright (c) 2006 Klaus Hartl (stilbuero.de)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 */
jQuery.cookie = function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        // CAUTION: Needed to parenthesize options.path and options.domain
        // in the following expressions, otherwise they evaluate to undefined
        // in the packed version for some reason...
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};


/**
 * NBC Site Scripts
 *
 * A simple set of function to increase and decrease the font size of the page
 * Sets a cookie to save the user's value
 * MOdified it to only effect the size of the font in the #maincol div
 *
 */
var sitefunctions = {
	textresize : function(){
		
		// show text resizing links
		$("#FontSize").show();
		var $cookie_name = "NarrBoatClub-FontSize";
		var originalFontSize = $("#maincol").css("font-size");
		
		// if exists load saved value, otherwise store it
		if($.cookie($cookie_name)) {
			var $getSize = $.cookie($cookie_name);
			$("#maincol").css({fontSize : $getSize + ($getSize.indexOf("px")!=-1 ? "" : "px")}); // IE fix for double "pxpx" error
		} else {
			$.cookie($cookie_name, originalFontSize);
		}
		
		// reset link
		$(".resetFont").bind("click", function() {
			$("#maincol").css("font-size", originalFontSize);
			$.cookie($cookie_name, originalFontSize);
		});
		
		// text "+" link
		$(".increaseFont").bind("click", function() {
			var currentFontSize = $("#maincol").css("font-size");
			var currentFontSizeNum = parseFloat(currentFontSize, 10);
			var newFontSize = currentFontSizeNum*1.08;
			if (newFontSize) {
				$("#maincol").css("font-size", newFontSize);
				$.cookie($cookie_name, newFontSize);
			}
			return false;	
		});
		
		// text "-" link
		$(".decreaseFont").bind("click", function() {
			var currentFontSize = $("#maincol").css("font-size");
			var currentFontSizeNum = parseFloat(currentFontSize, 10);
			var newFontSize = currentFontSizeNum*0.93;
			if (newFontSize) {
				$("#maincol").css("font-size", newFontSize);
				$.cookie($cookie_name, newFontSize);
			}
			return false;	
		});
	}
}
 
$(document).ready(function(){
		sitefunctions.textresize();	
})