//***********************************************************************
/*Teste les versions de languages implementees dans le navigateur 
	(test de DOM, de DHTML, de IE, NS, et MOZ	en tant que variable).
	Ajoute des fonctions recurrentes de gestion des className	sur les 
	elements.
	Ajoute des fonctions natives IE aux autres navigateurs de	type MOZ.*/
//***********************************************************************
/*utf-8.test.中文*/
/*-----------------------------------------------------------------
* Version du 30/01/2004
* ----------------------------------------------------------------
* (c) Open Log, Tous droits reserves
-----------------------------------------------------------------*/
var _LIB_IEEMU_JS = 1.1;

var DHTML = 0, DOM = 0, MS = 0, NS = 0, MOZ = 0, OP = 0;

if (window.opera)
{
   	OP = 1;
}
if(document.getElementById) 
{
	DHTML = 1;
	DOM = 1;
}
if(document.all && !OP)
{
	DHTML = 1;
	MS = 1;
}
if(document.layers && !OP) 
{
	DHTML = 1;
	NS = 1;
}
if(DOM && !NS && !OP && !MS) 
{
	DHTML = 1;
	MOZ = 1;
}

if(MOZ) 
{
	extendEventObject(); 
	emulateAttachEvent();
	emulateEventHandlers([	"click", 
							"dblclick", 
							"mouseover", 
							"mouseout",
							"mousedown", 
							"mouseup", 
							"mousemove",
							"keydown", 
							"keypress", 
							"keyup"]);
	emulateAllModel();
	emulateCurrentStyle([	"left", "right", "top", "bottom", "width", "height"	]);
	emulateHTMLModel();

	// Mozilla returns the wrong button number
	Event.LEFT = 1;
	Event.MIDDLE = 2;
	Event.RIGHT = 3;
	

	
}
else 
{
	Event = {};
	// IE is returning wrong button number as well :-)
	Event.LEFT = 1;
	Event.MIDDLE = 4;
	Event.RIGHT = 2;
}
//Tester la présence d'une classe sClassName sur el.
function isClassName(el, sClassName) 
{
	var s = el.className;
	var p = s.split(" ");
	var l = p.length;
	for (var i = 0; i < l; i++) {
		if (p[i] == sClassName)
			return true;
	}
	return false;
			
}
//Ajouter une classe sClassName sur el.
function addClassName(el, sClassName) 
{
	if( ! isClassName(el, sClassName) )
	{
		el.className += " " + sClassName;
	}
}
//Supprimer une classe sClassName sur el.
function removeClassName(el, sClassName) 
{
	var s = el.className;
	var p = s.split(" ");
	var np = [];
	var l = p.length;
	var j = 0;
	for (var i = 0; i < l; i++) {
		if (p[i] != sClassName)
			np[j++] = p[i];
	}
	el.className = np.join(" ");
}
//Récupérer un tableau de noeuds issus de la page courante ou de l'objet root
//en fonction de filter, filter étant une fonction de test d'un noeud 
//pour savoir si l'élément doit faire parti ou non du tableau.
function getNodesByType(type, filter, root)
{
    var nodes = new Array();
    root = ("undefined"==typeof(root)) ? document.body.parentNode : root;
    var context = root;
    var next;
    
    
    if (context.nodeType == null) return nodes;
    if (typeof filter != "function") filter = function() { return true; }
    
    while (context != null)
    {
        if (context.hasChildNodes())
        {
            context = context.firstChild;
        }
        else if (context != root && null != (next = context.nextSibling))
        {
            context = next;
        }
        else
        {
            next = null;
            for ( ; context != root; context = context.parentNode)
            {
                next = context.nextSibling;
                if (next != null) break;
            }
            context = next;
        }
        
        if (context != null && context.nodeType == type && filter(context))
        {
            nodes[nodes.length] = context;
        }
    }
    
    return nodes;
}



/*
 * Extends the event object with srcElement, cancelBubble, returnValue,
 * fromElement and toElement
 */
function extendEventObject() {
	Event.prototype.__defineSetter__("returnValue", function (b) {
		if (!b) this.preventDefault();
		return b;
	});
	
	Event.prototype.__defineSetter__("cancelBubble", function (b) {
		if (b) this.stopPropagation();
		return b;
	});
	
	Event.prototype.__defineGetter__("srcElement", function () {
		var node = this.target;
		while (node.nodeType != 1) node = node.parentNode;
		return node;
	});

	Event.prototype.__defineGetter__("fromElement", function () {
		var node;
		if (this.type == "mouseover")
			node = this.relatedTarget;
		else if (this.type == "mouseout")
			node = this.target;
		if (!node) return;
		while (node.nodeType != 1) node = node.parentNode;
		return node;
	});

	Event.prototype.__defineGetter__("toElement", function () {
		var node;
		if (this.type == "mouseout")
			node = this.relatedTarget;
		else if (this.type == "mouseover")
			node = this.target;
		if (!node) return;
		while (node.nodeType != 1) node = node.parentNode;
		return node;
	});
	
	Event.prototype.__defineGetter__("offsetX", function () {
		return this.layerX;
	});
	Event.prototype.__defineGetter__("offsetY", function () {
		return this.layerY;
	});
}

/*
 * Emulates element.attachEvent as well as detachEvent
 */
function emulateAttachEvent() {
    Window.prototype.attachEvent = 
	HTMLDocument.prototype.attachEvent = 
	HTMLElement.prototype.attachEvent = function (sType, fHandler) {
		var shortTypeName = sType.replace(/on/, "");
		fHandler._ieEmuEventHandler = function (e) {
			window.event = e;
			return fHandler();
		};
		this.addEventListener(shortTypeName, fHandler._ieEmuEventHandler, false);
	};

    Window.prototype.detachEvent = 
	HTMLDocument.prototype.detachEvent = 
	HTMLElement.prototype.detachEvent = function (sType, fHandler) {
		var shortTypeName = sType.replace(/on/, "");
		if (typeof fHandler._ieEmuEventHandler == "function")
			this.removeEventListener(shortTypeName, fHandler._ieEmuEventHandler, false);
		else
			this.removeEventListener(shortTypeName, fHandler, true);
	};
}

/*
 * This function binds the event object passed along in an
 * event to window.event
 */
function emulateEventHandlers(eventNames) {
	for (var i = 0; i < eventNames.length; i++) {	
		document.addEventListener(eventNames[i], function (e) {
			window.event = e;
		}, true);	// using capture
	}
}

/*
 * Simple emulation of document.all
 * this one is far from complete. Be cautious
 */
 
function emulateAllModel() {
	var allGetter = function () {
		var a = this.getElementsByTagName("*");
		var node = this;
		a.tags = function (sTagName) {
			return node.getElementsByTagName(sTagName);
		};
		return a;
	};
	HTMLDocument.prototype.__defineGetter__("all", allGetter);
	HTMLElement.prototype.__defineGetter__("all", allGetter);
}

function extendElementModel() {
	HTMLElement.prototype.__defineGetter__("parentElement", function () {
		if (this.parentNode == this.ownerDocument) return null;
		return this.parentNode;
	});
	
	HTMLElement.prototype.__defineGetter__("children", function () {
		var tmp = [];
		var j = 0;
		var n;
		for (var i = 0; i < this.childNodes.length; i++) {
			n = this.childNodes[i];
			if (n.nodeType == 1) {
				tmp[j++] = n;
				if (n.name) {	// named children
					if (!tmp[n.name])
						tmp[n.name] = [];
					tmp[n.name][tmp[n.name].length] = n;
				}
				if (n.id)		// child with id
					tmp[n.id] = n
			}
		}
		return tmp;
	});
	
	HTMLElement.prototype.contains = function (oEl) {
		if (oEl == this) return true;
		if (oEl == null) return false;
		return this.contains(oEl.parentNode);		
	};
}

/*

document.defaultView.getComputedStyle(el1,<BR>null).getPropertyValue('top');

*/
function emulateCurrentStyle(properties) {
	HTMLElement.prototype.__defineGetter__("currentStyle", function () {
		var cs = {};
		var el = this;
		for (var i = 0; i < properties.length; i++) {
			//cs.__defineGetter__(properties[i], function () {
			//	window.status = "i: " + i	;
			//	return document.defaultView.getComputedStyle(el, null).getPropertyValue(properties[i]);
			//});
			cs.__defineGetter__(properties[i], encapsulateObjects(el, properties[i]));
		}
		return cs;
	});
}
// used internally for emualteCurrentStyle
function encapsulateObjects(el, sProperty) {
	return function () {
		return document.defaultView.getComputedStyle(el, null).getPropertyValue(sProperty);
	};
}

function emulateHTMLModel() {

	// This function is used to generate a html string for the text properties/methods
	// It replaces '\n' with "<BR"> as well as fixes consecutive white spaces
	// It also repalaces some special characters	
	function convertTextToHTML(s) {
		s = s.replace(/\&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/\n/g, "<BR>");
		while (/\s\s/.test(s))
			s = s.replace(/\s\s/, "&nbsp; ");
		return s.replace(/\s/g, " ");
	}

	HTMLElement.prototype.insertAdjacentHTML = function (sWhere, sHTML) {
		var df;	// : DocumentFragment
		var r = this.ownerDocument.createRange();
		
		switch (String(sWhere).toLowerCase()) {
			case "beforebegin":
				r.setStartBefore(this);
				df = r.createContextualFragment(sHTML);
				this.parentNode.insertBefore(df, this);
				break;
				
			case "afterbegin":
				r.selectNodeContents(this);
				r.collapse(true);
				df = r.createContextualFragment(sHTML);
				this.insertBefore(df, this.firstChild);
				break;
				
			case "beforeend":
				r.selectNodeContents(this);
				r.collapse(false);
				df = r.createContextualFragment(sHTML);
				this.appendChild(df);
				break;
				
			case "afterend":
				r.setStartAfter(this);
				df = r.createContextualFragment(sHTML);
				this.parentNode.insertBefore(df, this.nextSibling);
				break;
		}	
	};

	HTMLElement.prototype.__defineSetter__("outerHTML", function (sHTML) {
	   var r = this.ownerDocument.createRange();
	   r.setStartBefore(this);
	   var df = r.createContextualFragment(sHTML);
	   this.parentNode.replaceChild(df, this);
	   
	   return sHTML;
	});

	HTMLElement.prototype.__defineGetter__("canHaveChildren", function () {
		switch (this.tagName) {
			case "AREA":
			case "BASE":
			case "BASEFONT":
			case "COL":
			case "FRAME":
			case "HR":
			case "IMG":
			case "BR":
			case "INPUT":
			case "ISINDEX":
			case "LINK":
			case "META":
			case "PARAM":
				return false;
		}
		return true;
	});

	HTMLElement.prototype.__defineGetter__("outerHTML", function () {
		var attr, attrs = this.attributes;
		var str = "<" + this.tagName;
		for (var i = 0; i < attrs.length; i++) {
			attr = attrs[i];
			if (attr.specified)
				str += " " + attr.name + '="' + attr.value + '"';
		}
		if (!this.canHaveChildren)
			return str + ">";
		
		return str + ">" + this.innerHTML + "</" + this.tagName + ">";
	});


	HTMLElement.prototype.__defineSetter__("innerText", function (sText) {
		this.innerHTML = convertTextToHTML(sText);
		return sText;		
	});

	var tmpGet;
	HTMLElement.prototype.__defineGetter__("innerText", tmpGet = function () {
		var r = this.ownerDocument.createRange();
		r.selectNodeContents(this);
		return r.toString();
	});

	HTMLElement.prototype.__defineSetter__("outerText", function (sText) {
		this.outerHTML = convertTextToHTML(sText);
		return sText;
	});
	HTMLElement.prototype.__defineGetter__("outerText", tmpGet);

	HTMLElement.prototype.insertAdjacentText = function (sWhere, sText) {
		this.insertAdjacentHTML(sWhere, convertTextToHTML(sText));
	};

}