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];}
}
function left_checkIsZenkaku(value) {
	var arrtemp = new Array;
	var j;
	j = 0;
	for (var i = 0; i < value.length; i++) {
		var c = value.charCodeAt(i); 
		arrtemp[j] = value.substring(j,j+1);
		j++;
		if(i==0&&c==45){
			return false;	
		}
		
	}
	document.login_form.arrid.value = arrtemp;
	return true;
}
function msn_event_check(){

	var objuserid = "";
	var objuserpw = "";
	var objarrid = "";

		objuserid = document.login_form.userid;
		objuserpw = document.login_form.userpw;
		objarrid = document.login_form.arrid;
		
	objuserid.value = chg_jun_ban(objuserid.value);

	if(!left_checkIsZenkaku(objuserid.value)){
		objuserid.focus();
		return;
	}
	if(objuserid.value.length==0){
		msnEventActiveMessage("-1/※IDを入力してください。");
		objuserid.focus();
		return;
	}
	for(var nBytes=0,i=0; i<objuserid.value.length; i++) {
		nBytes += ( objuserid.value.charCodeAt(i)>128 ) ? 2 : 1;
	}
	if(nBytes < 4 || nBytes > 12 || (objuserid.value.match(/\S+/) != objuserid.value) ){
		objuserid.focus();
		return;
	}
	if(objuserpw.value.length==0){
		msnEventActiveMessage("-2/※パスワードを入力してください。");
		objuserpw.focus();
		return;
	}
	if(objuserpw.value.length>16){
		msnEventActiveMessage("-3/※パスワードは最長16文字まで可?です。");
		objuserpw.focus();
		return;
	}

	var urlfileapp = "http://" + document.location.host + "/event/msn/knight/msn_event_login.php";
	var senddata = "userid="+objuserid.value+"&userpw="+objuserpw.value+"&arrid="+objarrid.value;
	document.getElementById('script_knight_event_result').src=urlfileapp+"?"+senddata;
}
function msnEventActiveMessage(strmessage) {
	var strValue = strmessage.split("/");
	var errcode = strValue[0];
	var returnmsg = strValue[1];
	var elem = document.getElementById("msnerrormsg");
	// 0 == false, 1 == true
	if (errcode != 0) {
		elem.innerHTML = returnmsg;
		elem.style.display="block";
		return;
	} else {
		elem.style.display="none";
		location.href="http://" + document.location.host + "/event/msn/knight/thankyou.php";
		return;
	}
}