/** 
  * jQuery.query - Query String Modification and Creation for jQuery 
  * Written by Blair Mitchelmore (blair DOT mitchelmore AT gmail DOT com) 
  * Licensed under the WTFPL (http://sam.zoy.org/wtfpl/). 
  * Date: 2008/05/28 
  * 
  * @author Blair Mitchelmore 
  * @version 2.0.0 
  * 
  **/ 
 new function(settings) {  
   // Various Settings 
   var $separator = settings.separator || '&'; 
   var $spaces = settings.spaces === false ? false : true; 
   var $suffix = settings.suffix === false ? '' : '[]'; 
   var $prefix = settings.prefix === false ? false : true; 
   var $hash = $prefix ? settings.hash === true ? "#" : "?" : ""; 
    
   jQuery.query = new function() { 
     var is = function(o, t) { 
       return o != undefined && o !== null && (!!t ? o.constructor == t : true); 
     }; 
     var parse = function(path) { 
       var m, rx = /\[([^[]*)\]/g, match = /^(\S+?)(\[\S*\])?$/.exec(path), base = match[1], tokens = []; 
       while (m = rx.exec(match[2])) tokens.push(m[1]); 
       return [base, tokens]; 
     }; 
     var set = function(target, tokens, value) { 
       var o, token = tokens.shift(); 
       if (typeof target != 'object') target = null; 
       if (token === "") { 
         if (!target) target = []; 
         if (is(target, Array)) { 
           target.push(tokens.length == 0 ? value : set(null, tokens.slice(0), value)); 
         } else if (is(target, Object)) { 
           var i = 0; 
           while (target[i++] != null); 
           target[--i] = tokens.length == 0 ? value : set(target[i], tokens.slice(0), value); 
         } else { 
           target = []; 
           target.push(tokens.length == 0 ? value : set(null, tokens.slice(0), value)); 
         } 
       } else if (token && token.match(/^\s*[0-9]+\s*$/)) { 
         var index = parseInt(token, 10); 
         if (!target) target = []; 
         target[index] = tokens.length == 0 ? value : set(target[index], tokens.slice(0), value); 
       } else if (token) { 
         var index = token.replace(/^\s*|\s*$/g, ""); 
         if (!target) target = {}; 
         if (is(target, Array)) { 
           var temp = {}; 
           for (var i = 0; i < target.length; ++i) { 
             temp[i] = target[i]; 
           } 
           target = temp; 
         } 
         target[index] = tokens.length == 0 ? value : set(target[index], tokens.slice(0), value); 
       } else { 
         return value; 
       } 
       return target; 
     }; 
      
     var queryObject = function(a) { 
       var self = this; 
       self.keys = {}; 
        
       if (a.queryObject) { 
         jQuery.each(a.get(), function(key, val) { 
           self.SET(key, val); 
         }); 
       } else { 
         jQuery.each(arguments, function() { 
           var q = "" + this; 
           q = q.replace(/^[?#]/,''); // remove any leading ? || # 
           q = q.replace(/[;&]$/,''); // remove any trailing & || ; 
           if ($spaces) q = q.replace(/[+]/g,' '); // replace +'s with spaces 
            
           jQuery.each(q.split(/[&;]/), function(){ 
             var key = this.split('=')[0]; 
             var val = this.split('=')[1]; 
              
             if (!key) return; 
              
             if (/^[+-]?[0-9]+\.[0-9]*$/.test(val)) // simple float regex 
               val = parseFloat(val); 
             else if (/^[+-]?[0-9]+$/.test(val)) // simple int regex 
               val = parseInt(val, 10); 
              
             val = (!val && val !== 0) ? true : val; 
              
             if (val !== false && val !== true && typeof val != 'number') 
               val = decodeURIComponent(val); 
              
             self.SET(key, val); 
           }); 
         }); 
       } 
       return self; 
     }; 
      
     queryObject.prototype = { 
       queryObject: true, 
       has: function(key, type) { 
         var value = this.get(key); 
         return is(value, type); 
       }, 
       GET: function(key) { 
         if (!is(key)) return this.keys; 
         var parsed = parse(key), base = parsed[0], tokens = parsed[1]; 
         var target = this.keys[base]; 
         while (target != null && tokens.length != 0) { 
           target = target[tokens.shift()]; 
         } 
         return target || ""; 
       }, 
       get: function(key) { 
         var target = this.GET(key); 
         if (is(target, Object)) 
           return jQuery.extend(true, {}, target); 
         else if (is(target, Array)) 
           return target.slice(0); 
         return target; 
       }, 
       SET: function(key, val) { 
         var value = !is(val) ? null : val; 
         var parsed = parse(key), base = parsed[0], tokens = parsed[1]; 
         var target = this.keys[base]; 
         this.keys[base] = set(target, tokens.slice(0), value); 
         return this; 
       }, 
       set: function(key, val) { 
         return this.copy().SET(key, val); 
       }, 
       REMOVE: function(key) { 
         return this.SET(key, null).COMPACT(); 
       }, 
       remove: function(key) { 
         return this.copy().REMOVE(key); 
       }, 
       EMPTY: function() { 
         var self = this; 
         jQuery.each(self.keys, function(key, value) { 
           delete self.keys[key]; 
         }); 
         return self; 
       }, 
       empty: function() { 
         return this.copy().EMPTY(); 
       }, 
       copy: function() { 
         return new queryObject(this); 
       }, 
       COMPACT: function() { 
         function build(orig) { 
           var obj = typeof orig == "object" ? is(orig, Array) ? [] : {} : orig; 
           if (typeof orig == 'object') { 
             function add(o, key, value) { 
               if (is(o, Array)) 
                 o.push(value); 
               else 
                 o[key] = value; 
             } 
             jQuery.each(orig, function(key, value) { 
               if (!is(value)) return true; 
               add(obj, key, build(value)); 
             }); 
           } 
           return obj; 
         } 
         this.keys = build(this.keys); 
         return this; 
       }, 
       compact: function() { 
         return this.copy().COMPACT(); 
       }, 
       toString: function() { 
         var i = 0, queryString = [], chunks = [], self = this; 
         var addFields = function(arr, key, value) { 
           if (!is(value) || value === false) return; 
           var o = [key]; 
           if (value !== true) { 
             o.push("="); 
             o.push(encodeURIComponent(value)); 
           } 
           arr.push(o.join("")); 
         }; 
         var build = function(obj, base) { 
           var newKey = function(key) { 
             return !base || base == "" ? [key].join("") : [base, "[", key, "]"].join(""); 
           }; 
           jQuery.each(obj, function(key, value) { 
             if (typeof value == 'object')  
               build(value, newKey(key)); 
             else 
               addFields(chunks, newKey(key), value); 
           }); 
         }; 
          
         build(this.keys); 
          
         if (chunks.length > 0) queryString.push($hash); 
         queryString.push(chunks.join($separator)); 
          
         return queryString.join(""); 
       } 
     }; 
      
     return new queryObject(location.search, location.hash); 
   }; 
 }(jQuery.query || {}); // Pass in jQuery.query as settings object