/*
 * HTML Element Converter 2006.09.06
 * by NHN UII.Gony
 */

// create class
var Class = function(/* definition */){
    var obj = function() {
        if (this.__const) this.__const.apply(this,arguments);
    }
    if (arguments[0]) Class.extend(obj.prototype, arguments[0]);

    return obj;
}

// class inheritance - multiple inheritance supportable
Class.extend = function(superClass/*, subCls1, subCls2, ... */) {
    var obj = superClass;
    for(var i=1; i < arguments.length; i++) {
        if (arguments[i]) {
            for(var x in arguments[i]) {
                obj[x] = arguments[i][x];
            }
        }
    }

    return obj;
}

// global event object
var Event = {
    register : function(oEl, sEvent, pFunc) {
        oEl = $(oEl);
        if (oEl.addEventListener) {
            oEl.addEventListener(sEvent, pFunc, false);
        } else if(oEl.attachEvent) {
            oEl.attachEvent('on'+sEvent, pFunc);
        }
    },
    unregister : function(oEl, sEvent, pFunc) {
        oEl = $(oEl);
        if (oEl.removeEventListener) {
            oEl.removeEventListener(sEvent, pFunc, false);
        } else if(oEl.detachEvent) {
            oEl.detachEvent('on'+sEvent, pFunc);
        }
    },
    ready : function(evt) {
        var e = evt || window.event;
        var b = document.body;

        Class.extend(e, {
            element : e.target || e.srcElement,
            page_x  : e.pageX || e.clientX+b.scrollLeft-b.clientLeft,
            page_y  : e.pageY || e.clientY+b.scrollTop-b.clientTop,
            key     : {
                alt : e.altKey,
                ctrl : e.ctrlKey,
                shift : e.shiftKey,
                up : [38,104].has(e.keyCode),
                down : [40,98].has(e.keyCode),
                left : [37,100].has(e.keyCode),
                right : [39,102].has(e.keyCode),
                enter : (e.keyCode==13)
            },
            mouse   : {
                left   : (e.which&&e.button==0)||!!(e.button&1),
                middle : (e.which&&e.button==1)||!!(e.button&4),
                right  : (e.which&&e.button==2)||!!(e.button&2)
            },
            stop : function() {
                if (this.preventDefault) {
                    this.preventDefault();
                    this.stopPropagation();
                } else {
                    this.returnValue = false;
                    this.cancelBubble = true;
                }
            }
        });

        return e;
    }
}

// global element object
var Element = {
    show : function() {
        [].load(arguments).each(function(v){ $(v).style.display=''; });
    },
    hide : function() {
        [].load(arguments).each(function(v){ $(v).style.display='none'; });
    },
    toggle : function() {
        [].load(arguments).each(function(v){ Element[Element.visible(v)?'hide':'show'](v) });
    },
    visible : function(oEl) {
        return ($(oEl).style.display!='none');
    },
    realPos : function(oEl) {
        if (oEl.offsetParent) {
            var p = this.realPos(oEl.offsetParent);
            return { top: oEl.offsetTop+p.top, left: oEl.offsetLeft+p.left };
        } else {
            return { top: oEl.offsetTop, left:oEl.offsetLeft };
        }
    },
    getCSS : function(oEl, name) {
        return oEl.style[name];
    },
    setCSS : function(oEl, css) {
        Class.extend(oEl.style, css);
    },
    hasClass : function(oEl, className) {
        return $(oEl).className.split(/\s+/).has(className);
    },
    addClass : function(oEl, className) {
        if (!this.hasClass(oEl, className)) ($(oEl).className+=' '+className).replace(/^\s+/,'');
    },
    removeClass : function(oEl, className) {
        $(oEl).className = $(oEl).className.replace(new RegExp('(^|\s+)'+className+'($|\s+)','g'),'');
    }
}

// array extend
Class.extend(Array.prototype, {
    has : function(value) {
        for(var i=0; i<this.length; i++) {
            if (this[i] == value) return true;
        }
        return false;
    },
    load : function(obj) {
        for(var i=0; i<obj.length; i++) {
            this.push(obj[i]);
        }
        return this;
    },
    each : function(iter) {
        for(var i=0; i<this.length; i++) {
            iter(this[i],i);
        }
    },
    filter : function(iter) {
        var ret = [];
        for(var i=0; i<this.length; i++) {
            if (iter(this[i],i)) ret.push(this[i]);
        }
        return ret;
    },
    map : function(iter) {
        for(var i=0; i<this.length; i++) {
            this[i] = iter(this[i],i);
        }
    },
    refuse : function(value) {
        return this.filter(function(v){ return v!=value });
    }
});
if (Array.prototype.forEach) {
    Array.prototype.each = Array.prototype.forEach;
}

// function extend
Class.extend(Function.prototype, {
    bind : function(obj) {
        var f=this, a=[].load(arguments);a.shift();
        return function() {
            return f.apply(obj, a);
        }
    },
    bindForEvent : function(obj) {
        var f=this;
        return function(e) {
            return f.call(obj, Event.ready(e));
        }
    }
});

// get object by id
function $() {
    var ret = [];
    for(var i=0; i < arguments.length; i++) {
        if (typeof arguments[i] == 'string') {
            ret.push(document.getElementById(arguments[i]));
        } else {
            ret.push(arguments[i]);
        }
    }
    return ret[1]?ret:ret[0];
}

// create element
function $c(tag) {
    return document.createElement(tag);
}
/*  
document.getElementsByClassName = function(className, oParent) {
	var a = [].load(($(oParent) || document.body).getElementsByTagName('*'));
	var r = new RegExp('(^|\\s)'+className+'($|\\s)','gi');
	return a.filter(function(v){ return r.match(v.className); });
}*/
 
 // 2011-06-23  M4 Γί°‘ 
document.getElementsByClassName = function(className, oParent) {
  var ret = new Array();
  if ( oParent == null ) oParent = document.body;
  var els = oParent.getElementsByTagName('*');
  var elsLen = els.length;
  var r = new RegExp("(^|\\s)"+className+"(\\s|$)");
  for (i=0, j=0; i<elsLen; i++) {
    if ( r.test(els[i].className) ) {
       ret[j++] = els[i];
    }
  }
  return ret;
 }