var rand1 = 0;
var useRand = 0;

images = new Array;
images[1] = new Image();
images[1].src = "/images/upload/1.gif";
images[2] = new Image();
images[2].src = "/images/upload/2.gif";
images[3] = new Image();
images[3].src = "/images/upload/3.gif";
images[4] = new Image();
images[4].src = "/images/upload/4.gif";
images[5] = new Image();
images[5].src = "/images/upload/5.gif";

function swapPic() {
var imgnum = images.length - 1;
do {
var randnum = Math.random();
rand1 = Math.round((imgnum - 1) * randnum) + 1;
} while (rand1 == useRand);
useRand = rand1;
document.randimg.src = images[useRand].src;
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
function MM_popupMsg(msg) { //v1.0
  alert(msg);
}
function MM_changeProp(objName,x,theProp,theValue) { //v3.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)) eval("obj."+theProp+"='"+theValue+"'");
}
function MM_setTextOfTextfield(objName,x,newText) { //v3.0
  var obj = MM_findObj(objName); if (obj) obj.value = newText;
}