var hexc = new Array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F')
var redcol_1
var redcol_2 
var greencol_1 
var greencol_2 
var bluecol_1 
var bluecol_2 

function makedarker(a,b,c,d,e,f) {
	deb12=a
	deb34=b
	deb56=c
	fin12=d
	fin34=e
	fin56=f

	if (deb12<fin12) {deb12+=2}
	if (deb12>fin12) {deb12-=1}
	if (deb34<fin34) {deb34+=2}
	if (deb34>fin34) {deb34-=1}
	if (deb56<fin56) {deb56+=2}
	if (deb56>fin56) {deb56-=1}
    
	redcol_1 = hexc[Math.floor(deb12/16)];
	redcol_2 = hexc[deb12%16];
	greencol_1 = hexc[Math.floor(deb34/16)];
	greencol_2 = hexc[deb34%16];
	bluecol_1 = hexc[Math.floor(deb56/16)];
	bluecol_2 = hexc[deb56%16];
	var backcolor="#"+redcol_1+redcol_2+greencol_1+greencol_2+bluecol_1+bluecol_2
	document.bgColor=backcolor 
	var timer=setTimeout("makedarker(deb12,deb34,deb56,fin12,fin34,fin56)",20)
		
	if (deb12==fin12 && deb34==fin34 && deb56==fin56){clearTimeout(timer)}
}