a1=new Image
a1.src="files/topco.gif"
a2=new Image
a2.src="files/topcored.gif"

a3=new Image
a3.src="files/topshow.gif"
a4=new Image
a4.src="files/topshowred.gif"


a5=new Image
a5.src="files/topprod.gif"
a6=new Image
a6.src="files/topprodred.gif"

a7=new Image
a7.src="files/tophome.gif"
a8=new Image
a8.src="files/tophomered.gif"

function filter(imagename,objectsrc)
{
	if (document.images)
	{
		document.images[imagename].src=eval(objectsrc+".src")
	}
}