/* ==================== TOP用メイン画像ランダム表示 ==================== */
var rd = Math.random();
var img1;

if( rd <= 0.50 ){
	img1 = "header01";
}
else if( rd <= 0.75 ){
	img1 = "header02";
}
else if( rd <= 1 ){
	img1 = "header03";
}

function mainimg1(){
	document.write('<img src="images/' + img1 + '.jpg" width="580" height="120" alt="" border="0" />');
}

/* ==================== 切り替え画像 ==================== */
	function changeImage(nm){
	    document.g_img.src='images/game/game0' + nm + '.jpg';
	}
	function changeImage2(nm2){
	    document.y_img.src='images/yokoku/yokoku0' + nm2 + '.jpg';
	}
	function changeImage3(nm3){
	    document.r_img.src='images/reach/reach0' + nm3 + '.jpg';
	}