r=Math.random()*19;
c=Math.ceil(r);
if (c==1) {h="images/css/bg1.css"}
else if (c==2) {h="images/css/bg2.css"}
else if (c==3) {h="images/css/bg3.css"}
else if (c==4) {h="images/css/bg4.css"}
else if (c==5) {h="images/css/bg5.css"}
else if (c==6) {h="images/css/bg6.css"}
else if (c==7) {h="images/css/bg7.css"}
else if (c==8) {h="images/css/bg8.css"}
else if (c==9) {h="images/css/bg9.css"}
else if (c==10) {h="images/css/bg10.css"}
else if (c==11) {h="images/css/bg11.css"}
else if (c==12) {h="images/css/bg12.css"}
else if (c==13) {h="images/css/bg13.css"}
else if (c==14) {h="images/css/bg14.css"}
else if (c==15) {h="images/css/bg15.css"}
else if (c==16) {h="images/css/bg16.css"}
else if (c==17) {h="images/css/bg17.css"}
else if (c==18) {h="images/css/bg18.css"}
else {h="images/css/bg19.css"}
document.write('<link rel="stylesheet" TYPE="text/css" HREF="'+h+'">')

function exMenu(tName)
{
	tMenu = document.all[tName].style;
	if (tMenu.display == 'none') tMenu.display = "block"; else tMenu.display = "none";
}