/* ==================== TOP用ナビゲーション ==================== */
if(navigator.appVersion.charAt(0) >=3){
	var topimg = new Array();
	
	for( i = 0 ; i < 10 ; i++ ){
		topimg[i] = new Image();
	}

	topimg[0].src= "images/navi_bangumi_off.gif";
	topimg[1].src= "images/navi_bangumi_on.gif";
	topimg[2].src= "images/navi_konkai_off.gif";
	topimg[3].src= "images/navi_konkai_on.gif";
	topimg[4].src= "images/navi_present_off.gif";
	topimg[5].src= "images/navi_present_on.gif";
	topimg[6].src= "images/navi_omake_off.gif";
	topimg[7].src= "images/navi_omake_on.gif";
	topimg[8].src= "images/navi_negai_off.gif";
	topimg[9].src= "images/navi_negai_on.gif";
}

function topnavi(dim,cnt){
	if(navigator.appVersion.charAt(0) >= 3 ){
		document.images[dim].src=topimg[cnt].src;
	}
}


/* ==================== TOP用メイン画像ランダム表示 ==================== */
var rd = Math.random();
var img1;
var bg;
var img2;

if( rd <= 0.20 ){
	img1 = "mainimg1_1";
	bg = "mainimgbg1";
	img2 = "mainimg1_2";
}
else if( rd <= 0.40 ){
	img1 = "mainimg2_1";
	bg = "mainimgbg2";
	img2 = "mainimg2_2";
}
else if( rd <= 0.60 ){
	img1 = "mainimg3_1";
	bg = "mainimgbg3";
	img2 = "mainimg3_2";
}
else if( rd <= 0.80 ){
	img1 = "mainimg4_1";
	bg = "mainimgbg4";
	img2 = "mainimg4_2";
}
else if( rd <= 1 ){
	img1 = "mainimg5_1";
	bg = "mainimgbg5";
	img2 = "mainimg5_2";
}

function mainimg1(){
	document.write('<td height="101" colspan="3"><img src="images/' + img1 + '.jpg" width="559" height="101" border="0" alt=""></td>');
}

function mainimg2(){
	document.write('<td width="332" valign="top" background="images/' + bg + '.jpg" nowrap>');
}

function mainimg3(){
	document.write('<td width="345" valign="bottom" style="padding: 0px 0px 15px 0px; background:url(images/' + img2 + '.jpg) no-repeat 0 0;"></td>');
}