/* ランダム表示 
----------------------------------------------------------------------------------------------*/

var iValue, nNumber;

var img1=new Image();
var img2=new Image();
var img3=new Image();
var img4=new Image();
var img5=new Image();
img1.src="images/top_image01.jpg"
img2.src="images/top_image02.jpg"
img3.src="images/top_image03.jpg"
img4.src="images/top_image04.jpg"
img5.src="images/top_image05.jpg"

function displayImage() {
	iValue=Math.random()*5;
	rNumber=Math.ceil(iValue);
	if(rNumber==0) rNumber++;
	document.image1.src=eval("img"+rNumber+".src");
	}





/* マウスオン 
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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];}
}




/* Rollover 
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function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		photo_01over= newImage("showcase/images/sample01_01big.jpg");
		preloadFlag = true;
	}
}



/* Popup 
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function SWindow(Aurl,Aname,Awidth,Aheight,Atoolbar,Alocation,Astatus,Ascroll,Amenu,Aresize){
	Astr = "width=" + Awidth;
	Astr+= ",height=" + Aheight;
	if(Atoolbar)Astr+= ",toolbar";
	if(Alocation)Astr+= ",location";
	if(Astatus)Astr+= ",status";
	if(Ascroll)Astr+= ",scrollbars";
	if(Amenu)Astr+= ",menubar";
	if(Aresize)Astr+= ",resizable";
	window.open(Aurl,Aname,Astr);
}