HsExpander.prototype.doFullExpand = function () {
    try {
        hs.purge(this.fullExpandIcon);
        this.fullExpandIcon.parentNode.removeChild(this.fullExpandIcon);
        this.focus();
        this.x.min = parseInt(this.wrapper.style.left) - (this.fullExpandWidth - this.content.width) / 2;
        if (this.x.min < hs.marginLeft) this.x.min = hs.marginLeft;        
        this.wrapper.style.left = this.x.min +'px';
        var borderOffset = this.wrapper.offsetWidth - this.content.width;        
        this.content.width = this.fullExpandWidth;
        this.content.height = this.fullExpandHeight;
        this.x.span = this.content.width;
        this.wrapper.style.width = (this.x.span + borderOffset) +'px';
        this.y.span = this.wrapper.offsetHeight - 2 * this.offsetBorderH;
        this.positionOutline(this.x.min, this.y.min, this.x.span, this.y.span);
        // reposition overlays
        for (x = 0; x < this.overlays.length; x++) {
            hs.purge(this.overlays[x]);
            this.overlays[x].parentNode.removeChild(this.overlays[x]);
        }        
        if (hs.showCredits) this.writeCredits();
        this.createCustomOverlays();
        this.redoShowHide();
    } catch (e) {
        window.location.href = hs.expanders[this.key].content.src;
    }
};