img1=new Image(); img1.src="graph/back.gif";
img2=new Image(); img2.src="graph/back-ch.gif";
img3=new Image(); img3.src="graph/forward.gif";
img4=new Image(); img4.src="graph/forward-ch.gif";

img5=new Image(); img5.src="graph/ic-audio.gif";
img6=new Image(); img6.src="graph/ic-audio2.gif";
img7=new Image(); img7.src="graph/ic-video.gif";
img8=new Image(); img8.src="graph/ic-video2.gif";
img9=new Image(); img9.src="graph/ic-photo.gif";
img10=new Image(); img10.src="graph/ic-photo2.gif";

img11=new Image(); img11.src="graph/calendar-back.gif";
img12=new Image(); img12.src="graph/calendar-back2.gif";
img13=new Image(); img13.src="graph/calendar-forward.gif";
img14=new Image(); img14.src="graph/calendar-forward2.gif";