function randomHeader(pageType){
// output randomheader
if (pageType == "http://www.ilbianco.com/common-images/top"){
	img = new Array();
	img[0] = "http://www.ilbianco.com/common-images/banner-ma2.jpg";
	img[1] = "http://www.ilbianco.com/common-images/banner-bu2.jpg";
	img[2] = "http://www.ilbianco.com/common-images/banner-ve2.jpg";
	img[3] = "http://www.ilbianco.com/common-images/banner-co2.jpg";
	img[4] = "http://www.ilbianco.com/common-images/banner-fe2.jpg";
	n = Math.floor(Math.random()*img.length);
		imgfile = img[n]
}else if (pageType == "http://www.ilbianco.com/common-images/usage"){
	img = new Array();
	img[0] = "http://www.ilbianco.com/common-images/banner-rndm_03.jpg";
	img[1] = "http://www.ilbianco.com/common-images/banner-rndm_04.jpg";
	img[2] = "http://www.ilbianco.com/common-images/banner-rndm_05.jpg";
	n = Math.floor(Math.random()*img.length);
	imgfile = img[n]
}else{
		imgfile = pageType
}
document.write("<img src='"+imgfile+"'  width='800' height='180' />");
}
//
function checkText(){
	error=0
	mail1 = document.getElementById('mail_email').value
	mail2 = document.getElementById('mail_confirm').value
	username = document.getElementById('mail_author').value
	mailbody = document.getElementById('mail_text').value
	if (username == ""){
		alert("お名前(必須)が未入力です。確認してください。")
		error=1
	}
	
	if ( mail1 == "" && error==0){
			alert("メールアドレス(必須)が未入力です。確認してください。")	
			error=1
	}
	if (mail1 != mail2 && error==0){
			alert("メールアドレス(必須)と確認用メールアドレス(必須)の内容が違います。確認してください。")
			error=1
	}
			
	if (mailbody == "" && error==0){
			alert("メール本文(必須)が未入力です。確認してください。")	
			error=1
	}
	if (error == 0){
		document.forms['mail_form'].submit()
		//return 1
	}else{
		return 0
	}
}

function servicebanner(){
	
	img = new Array();
	url = new Array();
	alt = new Array();
	
	img[0] = "http://www.ilbianco.com/images/servicebanner/1st_aniv.gif";
	url[0] = "http://www.ilbianco.com/"
	alt[0] = ""
	
	img[1] = "http://www.ilbianco.com/images/servicebanner/point.gif";
	url[1] = "http://www.ilbianco.com/"
	alt[1] = ""
	/*
	img[2] = "http://www.ilbianco.com/images/servicebanner/tanaoroshi.gif";
	url[2] = "http://www.ilbianco.com/"
	alt[2] = ""
	*/
	n = Math.floor(Math.random()*img.length);
	imgfile = img[n]
	address = url[n]
	desc = alt[n]
	
/*	src = "<img src='"+imgfile+"' width='258' height='145' alt='"+desc+"' />"
	alert (src)
document.write(src);
*/
document.write("<div class='ab'><a href='"+address+"'><img src='"+imgfile+"' width='258' height='145' alt='"+desc+"' style='display;block;' /></a></div>");
}