function blink() {
  if (!document.all) { return; }
  for (i = 0; i < document.all.length; i++) {
    obj = document.all(i);
    if (obj.className == "blink") {
      if (obj.style.visibility == "visible") {
        obj.style.visibility = "hidden";
      } else {
        obj.style.visibility = "visible";
      }
    }
  }
  setTimeout("blink()", 800);
}
function LogoChange(){
	ArrayP=new Array("p1.gif","p2.gif","p3.gif","p4.gif","p5.gif","p6.gif","p7.gif");
	ArrayS=new Array("s1.gif","s2.gif","s3.gif","s4.gif","s5.gif","s6.gif","s7.gif","s8.gif");
	shuffle(ArrayP);
    document.p0.src = mytext+myarray[0];
    document.p1.src = mytext+myarray[1];
    document.p2.src = mytext+myarray[2];
    document.p3.src = mytext+myarray[3];
    document.p4.src = mytext+myarray[4];
    document.p5.src = mytext+myarray[5];
    document.p6.src = mytext+myarray[6];
	shuffle(ArrayS);
    document.s0.src = mytext+myarray[0];
    document.s1.src = mytext+myarray[1];
    document.s2.src = mytext+myarray[2];
    document.s3.src = mytext+myarray[3];
    document.s4.src = mytext+myarray[4];
    document.s5.src = mytext+myarray[5];
    document.s6.src = mytext+myarray[6];	
    document.s7.src = mytext+myarray[7];	
}
function shuffle(ary){
	myarray=ary;
    for (i = 0; i < myarray.length; i++) {
	setin = myarray.length - i;
	myrand=Math.floor(Math.random()*setin);
	mytext=myarray[myrand];
        for(j=myrand ; j<myarray.length-1; j++)myarray[j]=myarray[j+1];
	myarray[myarray.length-1]=mytext;
    }
	mytext="img/sp-";
    for (i = 0; i < myarray.length; i++) {
	ImgAddr=mytext+myarray[i];
	}
}