var Behaviour = {
   list : new Array,

   register : function(sheet){
       Behaviour.list.push(sheet);
   },

   start : function(){
       Behaviour.addLoadEvent(function(){
       Behaviour.apply();
   });
},

   apply : function(){
       for (h=0;sheet=Behaviour.list[h];h++){
           for (selector in sheet){
               list = document.getElementsBySelector(selector);

               if (!list){
                   continue;
               }

               for (i=0;element=list[i];i++){
                   sheet[selector](element);
               }
           }
       }
   },

   addLoadEvent : function(func){
       var oldonload = window.onload;

       if (typeof window.onload != 'function') {
           window.onload = func;
       } else {
           window.onload = function() {
               oldonload();
               func();
           }
       }
   }
}

Behaviour.start();

function getAllChildren(e) {
   return e.all ? e.all : e.getElementsByTagName('*');
}

document.getElementsBySelector = function(selector) {
   if (!document.getElementsByTagName) {
       return new Array();
   }
   var tokens = selector.split(' ');
   var currentContext = new Array(document);
   for (var i = 0; i < tokens.length; i++) {
   token = tokens[i].replace(/^\s+/,'').replace(/\s+$/,'');;
   if (token.indexOf('#') > -1) {
       var bits = token.split('#');
       var tagName = bits[0];
       var id = bits[1];
       var element = document.getElementById(id);
       if (tagName && element.nodeName.toLowerCase() != tagName) {
           return new Array();
       }
       currentContext = new Array(element);
       continue;
   }
   if (token.indexOf('.') > -1) {
       var bits = token.split('.');
       var tagName = bits[0];
       var className = bits[1];
       if (!tagName) {
           tagName = '*';
       }
       var found = new Array;
       var foundCount = 0;
       for (var h = 0; h < currentContext.length; h++) {
           var elements;
           if (tagName == '*') {
               elements = getAllChildren(currentContext[h]);
           } else {
               elements = currentContext[h].getElementsByTagName(tagName);
           }
           for (var j = 0; j < elements.length; j++) {
               found[foundCount++] = elements[j];
           }
       }
       currentContext = new Array;
       var currentContextIndex = 0;
       for (var k = 0; k < found.length; k++) {
           if (found[k].className && found[k].className.match(new RegExp('\\b'+className+'\\b'))) {
               currentContext[currentContextIndex++] = found[k];
           }
       }
       continue;
   }

   if (token.match(/^(\w*)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/)) {
       var tagName = RegExp.$1;
       var attrName = RegExp.$2;
       var attrOperator = RegExp.$3;
       var attrValue = RegExp.$4;
       if (!tagName) {
           tagName = '*';
       }
       var found = new Array;
       var foundCount = 0;
       for (var h = 0; h < currentContext.length; h++) {
           var elements;
           if (tagName == '*') {
               elements = getAllChildren(currentContext[h]);
           } else {
               elements = currentContext[h].getElementsByTagName(tagName);
           }
           for (var j = 0; j < elements.length; j++) {
               found[foundCount++] = elements[j];
           }
       }
       currentContext = new Array;
       var currentContextIndex = 0;
       var checkFunction;
       switch (attrOperator) {
       case '=': 
           checkFunction = function(e) { return (e.getAttribute(attrName) == attrValue); };
           break;
       case '~': 
           checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('\\b'+attrValue+'\\b'))); };
           break;
       case '|': 
           checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('^'+attrValue+'-?'))); };
           break;
       case '^': 
           checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) == 0); };
           break;
       case '$': 
           checkFunction = function(e) { return (e.getAttribute(attrName).lastIndexOf(attrValue) == e.getAttribute(attrName).length - attrValue.length); };
           break;
       case '*': 
           checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) > -1); };
           break;
       default : 
           checkFunction = function(e) { return e.getAttribute(attrName); };
       }
       currentContext = new Array;
       var currentContextIndex = 0;
       for (var k = 0; k < found.length; k++) {
           if (checkFunction(found[k])) {
               currentContext[currentContextIndex++] = found[k];
           }
       }
       continue;
   }

   if (!currentContext[0]){
       return;
   }
   tagName = token;
   var found = new Array;
   var foundCount = 0;
   for (var h = 0; h < currentContext.length; h++) {
       var elements = currentContext[h].getElementsByTagName(tagName);
       for (var j = 0; j < elements.length; j++) {
           found[foundCount++] = elements[j];
       }
   }
   currentContext = found;
   }
return currentContext;
}