Ext.LinkButton = Ext.extend(Ext.Button, {
    template: new Ext.Template(
		'<table border="0" cellpadding="0" cellspacing="0" class="x-btn-wrap"><tbody><tr>',
		'<td class="x-btn-left"><i>&#160;</i></td><td class="x-btn-center"><a class="x-btn-text" href="{1}" target="{2}">{0}</a></td><td class="x-btn-right"><i>&#160;</i></td>',
		"</tr></tbody></table>"),

    onRender: function(ct, position) {
        var btn, targs = [this.text || ' ', this.href, this.target || "_self"];
        if (position) {
            btn = this.template.insertBefore(position, targs, true);
        } else {
            btn = this.template.append(ct, targs, true);
        }
        var btnEl = btn.child("a:first");
        btnEl.on('focus', this.onFocus, this);
        btnEl.on('blur', this.onBlur, this);

        this.initButtonEl(btn, btnEl);
        btn.un(this.clickEvent, this.onClick, this);
        Ext.ButtonToggleMgr.register(this);
    }
});

/*
Pour Ext 3

Ext.LinkButton = Ext.extend(Ext.Button, {
    template: new Ext.Template(
        '<table cellspacing="0" class="x-btn {3}"><tbody class="{4}">',
        '<tr><td class="x-btn-tl"><i>&#160;</i></td><td class="x-btn-tc"></td><td class="x-btn-tr"><i>&#160;</i></td></tr>',
        '<tr><td class="x-btn-ml"><i>&#160;</i></td><td class="x-btn-mc"><em class="{5}" unselectable="on"><a href="{6}" target="{7}" class="x-btn-text {2}"><button>{0}</button></a></em></td><td class="x-btn-mr"><i>&#160;</i></td></tr>',
        '<tr><td class="x-btn-bl"><i>&#160;</i></td><td class="x-btn-bc"></td><td class="x-btn-br"><i>&#160;</i></td></tr>',
        '</tbody></table>').compile(),

    buttonSelector : 'a:first',

    getTemplateArgs: function() {
        return Ext.Button.prototype.getTemplateArgs.apply(this).concat([this.href, this.target]);
    },

    onClick : function(e){
        if(e.button != 0){
            return;
        }
        if(!this.disabled){
            this.fireEvent("click", this, e);
            if(this.handler){
                this.handler.call(this.scope || this, this, e);
            }
        }
    }
});
*/