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_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_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];}
}
function changebigimage(imagename,image2name){
    document.bigimage.src=imagename;
    document.bigimage.onclick=function(){
    if (window.screen) {
        var fromLeft= screen.availWidth;
        var fromTop= screen.availHeight;
        var settings='width=600,height=600,left='+Math.floor(.5*(fromLeft-600-10))+',top='+Math.floor(.5*(fromTop-600-30))+',status=0,resizable=1,scrollbars=0';
        var win= window.open('popup.html?imagename='+image2name, 'Popup', settings);
        if (win.focus)
            win.focus();
        return false;
    }
    return true;
	};
}
var win = null;
function popCenter(theURL,winName,w,h,s){
    if (window.screen) {
        var fromLeft= screen.availWidth;
        var fromTop= screen.availHeight;
        var settings='width='+w+',height='+h+',left='+Math.floor(.5*(fromLeft-w-10))+',top='+Math.floor(.5*(fromTop-h-30))+',status=0,resizable=1,scrollbars='+s;
        var win= window.open(theURL, winName, settings);
        if (win.focus)
            win.focus();
        return false;
    }
    return true;
} 

var theImages = new Array();

theImages[0] = 'm/01.jpg'
theImages[1] = 'm/02.jpg'
theImages[2] = 'm/03.jpg'
theImages[3] = 'm/04.jpg'
theImages[4] = 'm/05.jpg'

var j = 0
var p = theImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
    document.write('<img src="'+theImages[whichImage]+'">');
}