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) { //v3.0
  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); 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];}
}

if (document.images) {
	// Preload big picture
	var big1 = new Image();
	var big2 = new Image();
	var big3 = new Image();
	var big4 = new Image();
	var big5 = new Image();
	var big6 = new Image();

	big1.src = "img/hypersonic96_dram.gif";
	big2.src = "img/hypersonic111_dram.gif";
	big3.src = "img/hypersonic133_dram.gif";
	big4.src = "img/hypersonic96_wood.gif";
	big5.src = "img/hypersonic111_wood.gif";
	big6.src = "img/hypersonic133_wood.gif";
}

function SwapImage(a, b) {
	if (document.images) {
		document.images[a].src = b.src;
	}
}