<!--
//num1からnum2の間の数値をランダムに返す汎用関数
function rangeRandom(num1,num2)	{
	if((num1 - num2) > 0)	{
		var big = num1
		var small = num2
	} else	{
		var big = num2
		var small = num1
	}
	var range = big - small + 1
	var number = Math.floor(Math.random()*range) + small
	return(number)
}

// b_00X(1〜4までの乱数)
function randomImg()	{
	var img_src = "top" + rangeRandom(1,26) + ".jpg"
	//window.alert(img_src);
	var writeCode = "<IMG SRC='img/" + img_src + "'>";
	//window.alert(writeCode);
	document.write(writeCode)
}
//-->
