/**
* Sets a cursor style.
*
* @param event is an event.
*/
protected void setCursor(Event event) {
Element th = getTh(event);
if (this.th != null || isOverBorder(event, th)) {
DOM.setStyleAttribute(DOM.eventGetTarget(event), "cursor", "e-resize");
this.currentX = getPositionX(event);
timer.schedule(20);
} else DOM.setStyleAttribute(DOM.eventGetTarget(event), "cursor", "");
}
