var jsver=1.1;
var ie = navigator.appName.charAt(0);
if(ie == "M"){
  var nv = navigator.appVersion.charAt(0);
  if(nv < 4) jsver=1.0;
}

var imgs = new imgObjs();
function imgObjs(){
  var i=0;
  if(jsver>1.0){
    this[i]=new Image(); this[i].src="img/main1.jpg"; i++;
    this[i]=new Image(); this[i].src="img/1th.jpg"; i++;
    this[i]=new Image(); this[i].src="img/2th.jpg"; i++;
    this[i]=new Image(); this[i].src="img/3th.jpg"; i++;
    this[i]=new Image(); this[i].src="img/4th.jpg"; i++;
    this[i]=new Image(); this[i].src="img/5th.jpg"; i++;
    this[i]=new Image(); this[i].src="img/6th.jpg"; i++;
  }
  this.length=i;
  return this;
}

function setImage(idx){
  if(imgs.length>0) document.msg.src=imgs[idx].src;
}
function resetImage(){
  if(imgs.length>0) document.msg.src=imgs[0].src;
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}