function ShowHideCursor(obj, len, strEvent)
{
	if(strEvent == 'focus') {
		$(obj).css({backgroundImage: ''});
	} else {
		if(len==0){
			$(obj).css({backgroundImage: 'url(images/cursor.gif)'}); 
		} else {
			$(obj).css({backgroundImage: ''}); 
		}
	}
}