function setCookie(cname,cvalue){
   document.cookie =  cname + "=" + escape(cvalue) + ";";
}
function getCookie(cname){
   cname = cname + "=";
   cvalue = null;
   wkstr = document.cookie + ";" ;
   myOfst = wkstr.indexOf(cname);
   if (myOfst != -1){
      myStart = myOfst + cname.length;
      myEnd   = wkstr.indexOf(";" , myStart);
      cvalue = unescape(wkstr.substring(myStart,myEnd));
   }
   return cvalue;
}
function delCookie(cname) {
	comming_time = new Date( );
	comming_time.setFullYear(comming_time.getFullYear( ) - 1);
	time_limit = "expires=" + comming_time.toGMTString( ) + ";";
	document.cookie = cname + "=;" + time_limit;
}

function onSubmitRegistLog(){
	with(document.form1){
		if(hname.value == ""){
			window.alert("お名前を入力してください。");
			hname.focus();
			return false;
		}
		if(title.value == ""){
			window.alert("タイトルを入力してください。");
			title.focus();
			return false;
		}
		if(comment.value == ""){
			window.alert("本文を入力してください。");
			comment.focus();
			return false;
		}
	}
}