function SelectAll( formulaire )
{
var len = formulaire.elements.length;
var i=0;
for( i = 0; i < len; i++)
{
        if ( formulaire.elements[i].type=='checkbox'
                && formulaire.elements[i].name != 'copie')
        {
                formulaire.elements[i].checked = true;
        }
}
}

function DeselectAll( formulaire )
{
var len = formulaire.elements.length;
var i=0;
for( i = 0; i < len; i++)
{
        if ( formulaire.elements[i].type=='checkbox'
                && formulaire.elements[i].name != 'copie')
        {
        formulaire.elements[i].checked = false;
        }
}
}

function Inverser( formulaire )
{
var len = formulaire.elements.length;
var i=0;
for( i=0; i<len; i++)
{
        if ( formulaire.elements[i].type=='checkbox'
                && formulaire.elements[i].name != 'copie')
        {
        formulaire.elements[i].checked = !formulaire.elements[i].checked;
        }
}
}

function phpWGOpenWindow(theURL,winName,features)
{
        img = new Image();
        img.src = theURL;
        if (img.complete)
        {
                var width=img.width +40;
                var height=img.height +40;
        }
        else
        {
                var width=640;
                var height=480;
                img.onload = resizeWindowToFit;
        }
        newWin = window.open(theURL,winName,features+',left=2,top=1,width=' + width + ',height=' + height);
}

function phpWGOpenLivre(theURL,winName,features)
{
        img = new Image();
        img.src = theURL;
        if (img.complete)
        {
                var width=400;
                var height=500;
        }
        else
        {
                var width=400;
                var height=500;
                //img.onload = resizeWindowToFit;
        }
        newWin = window.open(theURL,winName,features+',left=2,top=1,width=' + width + ',height=' + height);
}

function resizeWindowToFit()
{
        newWin.resizeTo( img.width+50, img.height+100);
}

function popuphelp(url)
{
        window.open( url, 'dc_popup',
                'alwaysRaised=yes,dependent=yes,toolbar=no,height=420,width=500,menubar=no,resizable=yes,scrollbars=yes,status=no'
        );
}


function blockToggleDisplay(headerId, contentId)
{
        var revHeader = document.getElementById(headerId);
        var revContent = document.getElementById(contentId);

        if (revContent.style.display == 'none')
        {
                revContent.style.display = 'block';
                revHeader.className = 'instructionBlockHeaderExpanded';
        }
        else
        {
                revContent.style.display = 'none';
                revHeader.className = 'instructionBlockHeaderCollapsed';
        }
}


Function.prototype.pwgBind = function() {
        var __method = this, object = arguments[0], args = new Array();
        for (var i=1; i<arguments.length; i++)
                args[i-1] = arguments[i];
        return function() { return __method.apply(object, args); }
}

function PwgWS(urlRoot)
{
        this.urlRoot = urlRoot;
        this.options = {
                method: "GET",
                async:  true,
                onFailure: null,
                onSuccess: null
        };
};


PwgWS.prototype = {

        callService : function(method, parameters, options)
        {
                if (options)
                {
                        for (var property in options)
                                this.options[property] = options[property];
                }
                try { this.transport = new XMLHttpRequest();}
                catch(e) {
                        try { this.transport = new ActiveXObject('Msxml2.XMLHTTP'); }
                        catch(e) {
                                try { this.transport = new ActiveXObject('Microsoft.XMLHTTP'); }
                                catch (e){
                                        dispatchError(0, "Cannot create request object");
                                }
                        }
                }
                this.transport.onreadystatechange = this.onStateChange.pwgBind(this);

                var url = this.urlRoot+"ws.php?format=json";

                var body = "method="+method;
                if (parameters)
                {
                        for (var property in parameters)
                        {
                                if ( typeof parameters[property] == 'object' && parameters[property])
                                {
                                        for (var i=0; i<parameters[property].length; i++)
                                                body += "&"+property+"[]="+encodeURIComponent(parameters[property][i]);
                                }
                                else
                                        body += "&"+property+"="+encodeURIComponent(parameters[property]);
                        }
                }

                if (this.options.method == "POST" )
                {
                        this.transport.open(this.options.method, url, this.options.async);
                        this.transport.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
                        this.transport.send(body);
                }
                else
                {
                        url += "&"+body;
                        this.transport.open(this.options.method, url, this.options.async);
                        this.transport.send(null);
                }
        },

        onStateChange: function() {
                var readyState = this.transport.readyState;
                if (readyState == 4)
                        this.respondToReadyState(this.transport.readyState);
        },

        dispatchError: function( httpCode, text )
        {
                !this.options.onFailure || this.options.onFailure( httpCode, text);
        },

        respondToReadyState: function(readyState)
        {
                var transport = this.transport;
                if (readyState==4 && transport.status == 200)
                {
                        var resp;
                        try {
                                eval('resp = ' + transport.responseText);
                        }
                        catch (e) {
                                this.dispatchError( 200, e.message + '\n' + transport.responseText.substr(0,512) );
                        }
                        if (resp!=null)
                        {
                                if (resp.stat==null)
                                        this.dispatchError( 200, "Invalid response" );
                                else if (resp.stat=='ok')
                                {
                                        if (this.options.onSuccess) this.options.onSuccess( resp.result );
                                }
                                else
                                        this.dispatchError( 200, resp.err + " " + resp.message);
                        }
                }
                if (readyState==4 && transport.status != 200)
                        this.dispatchError( transport.status, transport.statusText );
        },


        transport: null,
        urlRoot: null,
        options: {}
}