if(this.style.backgroundImage=='url(skin/vista/vistapic/v3.gif)')return; this.style.backgroundImage='url(skin/vista/vistapic/v4.gif)'; if(this.style.backgroundImage=='url(skin/vista/vistapic/v3.gif)')return; this.style.backgroundImage='url(skin/vista/vistapic/v1.gif)';