$(function() {

	// Position footer
	if (app_config.disable_footer_positioning !== true) {
		//$('#footer').positionFooter();
	}

	// Add class to page h2
	$('#page h2').each(function() {
		$(this).addClass('text_image');
		$(this).addClass('heading_on_white');
	});

	// Replace text images
	replace_text_images();

	// Bind anchor link events
	bind_anchor_link_events();

	// Add special onclick event to links and forms. Only necessary since
	// the site uses multiple domains
	$('a[href*=\''+app_config.my_app.other_site_host+'\']').attr("onClick", "pageTracker._link(this.href); return false;");

	// Supersleight PNG trans for stupid IE6
	$('.nav').supersleight();
	$('#header .logos').supersleight();
	
	// Preload over images in nav
	var img = new Image;
	img.src = '/img/nav_bg_over_'+app_config.site_code+'.png';
	img.src = '/img/nav_bg_over.png';
});

function replace_text_images() {
	for (var key in app_config.text_image.sets) {
		$('.text_image.'+key).each(function() {
			var text = $(this).text();
			var img = new Image();
			img.src = '/cache/text_image/'+key+'/'+base64_encode(text)+'.png';
			$(this).html('<img src="'+img.src+'" alt="'+text+'" />');
			$(this).removeClass('text_image');
			$(this).removeClass(key);
		});
	}
}

function bind_anchor_link_events() {
   function filterPath(string) {
		return string.replace(/^\//,'').replace(/(index|default).[a-zA-Z]{3,4}$/,'').replace(/\/$/,'');
	}
	var locationPath = filterPath(location.pathname);
	$('a[href*=#]').each(function() {
		var thisPath = filterPath(this.pathname) || locationPath;
		if (locationPath == thisPath
		&& (location.hostname == this.hostname || !this.hostname)
		&& this.hash.replace(/#/,'') ) {
			var $target = $(this.hash), target = this.hash;
			if (target) {
				var targetOffset = $target.offset().top;
				$(this).click(function(event) {
					event.preventDefault();
					$('html, body').animate({scrollTop: targetOffset}, 400, function() {
						//location.hash = target;
					});
				});
			}
		}
	});
}

function addClass(element, value) {
	if (!element.className) {
		element.className = value;
	} else {
		var newClassName = element.className;
		newClassName += " ";
		newClassName += value;
		element.className = newClassName;
	}
}

function base64_encode( data ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Tyler Akins (http://rumkin.com)
    // +   improved by: Bayron Guevara
    // +   improved by: Thunder.m
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Pellentesque Malesuada
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // -    depends on: utf8_encode
    // *     example 1: base64_encode('Kevin van Zonneveld');
    // *     returns 1: 'S2V2aW4gdmFuIFpvbm5ldmVsZA=='

    // mozilla has this native
    // - but breaks in 2.0.0.12!
    //if (typeof this.window['atob'] == 'function') {
    //    return atob(data);
    //}

    var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
    var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, enc="", tmp_arr = [];

    if (!data) {
        return data;
    }

    data = utf8_encode(data+'');

    do { // pack three octets into four hexets
        o1 = data.charCodeAt(i++);
        o2 = data.charCodeAt(i++);
        o3 = data.charCodeAt(i++);

        bits = o1<<16 | o2<<8 | o3;

        h1 = bits>>18 & 0x3f;
        h2 = bits>>12 & 0x3f;
        h3 = bits>>6 & 0x3f;
        h4 = bits & 0x3f;

        // use hexets to index into b64, and append result to encoded string
        tmp_arr[ac++] = b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4);
    } while (i < data.length);

    enc = tmp_arr.join('');

    switch( data.length % 3 ){
        case 1:
            enc = enc.slice(0, -2) + '==';
        break;
        case 2:
            enc = enc.slice(0, -1) + '=';
        break;
    }

    return enc;
}

function utf8_encode ( argString ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: sowberry
    // +    tweaked by: Jack
    // +   bugfixed by: Onno Marsman
    // +   improved by: Yves Sucaet
    // +   bugfixed by: Onno Marsman
    // *     example 1: utf8_encode('Kevin van Zonneveld');
    // *     returns 1: 'Kevin van Zonneveld'

    var string = (argString+'').replace(/\r\n/g, "\n").replace(/\r/g, "\n");

    var utftext = "";
    var start, end;
    var stringl = 0;

    start = end = 0;
    stringl = string.length;
    for (var n = 0; n < stringl; n++) {
        var c1 = string.charCodeAt(n);
        var enc = null;

        if (c1 < 128) {
            end++;
        } else if((c1 > 127) && (c1 < 2048)) {
            enc = String.fromCharCode((c1 >> 6) | 192) + String.fromCharCode((c1 & 63) | 128);
        } else {
            enc = String.fromCharCode((c1 >> 12) | 224) + String.fromCharCode(((c1 >> 6) & 63) | 128) + String.fromCharCode((c1 & 63) | 128);
        }
        if (enc !== null) {
            if (end > start) {
                utftext += string.substring(start, end);
            }
            utftext += enc;
            start = end = n+1;
        }
    }

    if (end > start) {
        utftext += string.substring(start, string.length);
    }

    return utftext;
}

function addCommas(nStr) {
	nStr += '';
	x = nStr.split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.'+x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1'+','+'$2');
	}
	return x1+x2;
}