jQuery.extend({
	/*
	  Function: attempt
	  Helper to execute a function and suppress errors.
	
		Parameters:
			- fn: function to bind
			- bind: context to bind the function to
			
		Returns:
			null
	*/
	attempt: function(fn, bind, args) {
		try {
			fn.apply(bind || null, jQuery.splat(args));
		}
		catch (e) {}
		return null;
	},
	
	/*
	  Function: bind
	  Binds a function to a context.
		Does not execute the function.
	
		Parameters:
			- fn: function to bind
			- bind: context to bind the function to
			
		Returns:
			function
	*/
	bind: function(fn, bind) {
	  return jQuery.pass(fn, Array, bind);
	},

	/*
	  Function: camelize
	  Converts lowercase and underscored text to camelCase.
	*/
	camelize: function(str) {
		return str.replace(/_(\w)/g, function(all, letter){
			return letter.toUpperCase();
		});
	},

	/*
	  Function: empty
	  Returns an empty function.
	*/
  empty: function() {},

	/*
  Function: fontAvailable
  Checks to see if the given font exists on the computer.

	Parameters:
		- fontName: string name of font-family to look for
		
	Returns:
		boolean
  */
  fontAvailable: function(fontName) {
    var element = jQuery('<span>')
      .css({ fontFamily: '__FAKEFONT__', visibility: 'hidden' })
      .html('abcdefghijklmnopqrstuvwxyz')
      .appendTo(document.body);
      
    var w = element.width(), h = element.height();

    element.css('font-family', fontName);
    
    var dw = element.width(), dh = element.height();
    
    element.remove();

    return (w !== dw || h !== dh);
  },
		
	/*
  Function: count
  Gets length of objects or arrays.
	*/
	count: function(obj) {
	  if (jQuery.type(obj) == 'object') {
	    var len = 0;
	    for (var i in obj)
	      len++;
	  }
	  else
	    len = (obj) ? obj.length : null;
	    
	  return len;
	},

	/*
  Function: low
  Shortcut for toLowerCase.
	*/
	low: function(str) {
		return (jQuery.type(str + '') == 'string') ? str.toLowerCase() : str;
	},

	/*
	  Function: now
	  Helper to get timestamp.
	
		Returns:
			date
	*/
	now: Date.now || function() {
		return +new Date;
	},
	
	/*
	  Function: pass
	  Passes arguments to a function and creates a closure.
		Does not execute the function.
	
		Parameters:
			- fn: function
			- args: one or more arguments (as an array)
			- bind: optional context to bind
			
		Returns:
			function
	*/
	pass: function(fn, args, bind) {
		return function() {
			var returns = function() {
				return fn.apply(bind || null, jQuery.splat(args));
			};
			return returns();
		};
	},
	
	/*
	  Function: random
	  Returns a random int between the min and max given.
	  If no min and max then returns boolean 1:2
	*/
	random: function(min, max) {
	  if (!min && !max)
	    return Math.round(Math.random());	  
	  if (!max) {
	    max = min;
	    min = 0;
	  }	  
    return Math.floor(Math.random() * (max - min + 1) + min);
	},
	
	/*
	  Function: slugize
	  Makes a string URL friendly.
	
		Parameters:
			- str: str to convert
			- replace: optional replacement string, default underscore
			
		Returns:
			str
	*/
	slugize: function(str, replacement) {
	  if (!replacement)
	    replacement = '_';
	    
	  var map = {
      'à|á|å|â': 'a',
      'è|é|ê|ẽ|ë': 'e',
      'ì|í|î': 'i',
      'ò|ó|ô|ø': 'o',
      'ù|ú|ů|û': 'u',
      'ç': 'c',
      'ñ': 'n',
      'ä|æ': 'ae',
      'ö': 'oe',
      'ü': 'ue',
      'Ä': 'Ae',
      'Ü': 'Ue',
      'Ö': 'Oe',
      'ß': 'ss',
      '[^\\w\\s]': ' ',
      '\\s+': replacement
	  }
	  
	  for (key in map) {
	    var re = new RegExp(key, 'g');
	    str = str.replace(re, map[key]);
	  }
      
  	return str;
	},

	/*
	  Function: splat
	  Converts any object to an array if it is not already.
	
		Parameters:
			- obj
			
		Returns:
			array
	*/
	splat: function(obj) {
		if (!obj)
			return [];
		return (jQuery.isArray(obj)) ? obj : [obj];
	},
	
	/*
	  Function: test
	  Tests to see if a given expression exists in the DOM, if not returns false
	
		Parameters:
			- selector
			- context
			
		Returns:
			an array of elements or false
	*/
	test: function(selector, context) {
		var results = jQuery(selector, context);
		return (results.length) ? results : false;
	},
	
	/*
	  Function: toFloat
	  Shortcut for parseFloat.
	*/
	toFloat: function(num) {
		var n = parseFloat(num);
		return isNaN(n) ? 0 : n;
	},

	/*
	  Function: toInt
	  Shortcut for parseInt.
	*/
	toInt: function(num, base) {
		var n = parseInt(num, base || 10);
		return isNaN(n) ? 0 : n;
	},
	
	/*
	  Function: type
	  Returns type.
	*/
	type: function(obj) {
	  var type = typeof obj;
	  if (type == 'object') {
	    if (jQuery.isArray(obj)) type = 'array';
	    if (jQuery.isFunction(obj)) type = 'function';
	  }
	  if (type == 'number' && isNaN(obj) == true)
	    type = 'NaN';
	  
	  return type;
	},
	
	/*
  Function: up
  Shortcut for toUpperCase.
	*/
	up: function(str) {
		return (jQuery.type(str + '') == 'string') ? str.toUpperCase() : str;
	}
});

jQuery.fn.extend({  
  fr: function(css) {
    var obj = (css) ? [this, css] : this;
    Nildog.fr(obj);
    return this;
  },
  
  tag: function() {
    return jQuery.low(this.attr('tagName'));
  }
});

/*
 * jQuery Easing v1.3 - http://gsgd.co.uk/sandbox/jquery/easing/
 *
 * Uses the built in easing capabilities added In jQuery 1.1
 * to offer multiple easing options
 *
 * TERMS OF USE - jQuery Easing
 * 
 * Open source under the BSD License. 
 * 
 * Copyright © 2008 George McGinley Smith
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list of 
 * conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this list 
 * of conditions and the following disclaimer in the documentation and/or other materials 
 * provided with the distribution.
 * 
 * Neither the name of the author nor the names of contributors may be used to endorse 
 * or promote products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 *  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
 * OF THE POSSIBILITY OF SUCH DAMAGE. 
 *
*/

// t: current time, b: begInnIng value, c: change In value, d: duration
jQuery.easing['jswing'] = jQuery.easing['swing'];

jQuery.extend( jQuery.easing, {
	def: 'easeOutQuad',
	swing: function (x, t, b, c, d) {
		//alert(jQuery.easing.default);
		return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
	},
	easeInQuad: function (x, t, b, c, d) {
		return c*(t/=d)*t + b;
	},
	easeOutQuad: function (x, t, b, c, d) {
		return -c *(t/=d)*(t-2) + b;
	},
	easeInOutQuad: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t + b;
		return -c/2 * ((--t)*(t-2) - 1) + b;
	},
	easeInCubic: function (x, t, b, c, d) {
		return c*(t/=d)*t*t + b;
	},
	easeOutCubic: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t + 1) + b;
	},
	easeInOutCubic: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t + b;
		return c/2*((t-=2)*t*t + 2) + b;
	},
	easeInQuart: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t + b;
	},
	easeOutQuart: function (x, t, b, c, d) {
		return -c * ((t=t/d-1)*t*t*t - 1) + b;
	},
	easeInOutQuart: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
		return -c/2 * ((t-=2)*t*t*t - 2) + b;
	},
	easeInQuint: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t*t + b;
	},
	easeOutQuint: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t*t*t + 1) + b;
	},
	easeInOutQuint: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
		return c/2*((t-=2)*t*t*t*t + 2) + b;
	},
	easeInSine: function (x, t, b, c, d) {
		return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
	},
	easeOutSine: function (x, t, b, c, d) {
		return c * Math.sin(t/d * (Math.PI/2)) + b;
	},
	easeInOutSine: function (x, t, b, c, d) {
		return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
	},
	easeInExpo: function (x, t, b, c, d) {
		return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
	},
	easeOutExpo: function (x, t, b, c, d) {
		return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
	},
	easeInOutExpo: function (x, t, b, c, d) {
		if (t==0) return b;
		if (t==d) return b+c;
		if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
		return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
	},
	easeInCirc: function (x, t, b, c, d) {
		return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
	},
	easeOutCirc: function (x, t, b, c, d) {
		return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
	},
	easeInOutCirc: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
		return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
	},
	easeInElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
	},
	easeOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
	},
	easeInOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
		return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
	},
	easeInBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*(t/=d)*t*((s+1)*t - s) + b;
	},
	easeOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
	},
	easeInOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158; 
		if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
		return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
	},
	easeInBounce: function (x, t, b, c, d) {
		return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
	},
	easeOutBounce: function (x, t, b, c, d) {
		if ((t/=d) < (1/2.75)) {
			return c*(7.5625*t*t) + b;
		} else if (t < (2/2.75)) {
			return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
		} else if (t < (2.5/2.75)) {
			return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
		} else {
			return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
		}
	},
	easeInOutBounce: function (x, t, b, c, d) {
		if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
		return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
	}
});