function check_id(){
	var target = 'http://chiecom.jp/check_id?id=' + document.register.username.value;
	var SWA;
	SWA = window.open(target,"check_id","WIDTH=380,HEIGHT=150,toolbar=no,location=no,status=no,menubar=no,directories=no,scrollbars=no");
	SWA.focus();
}

function kwdComment(obj){
if (obj.value == obj.defaultValue){
  obj.value = "";
  obj.style.color = "#000";
}
}

function check_keyword() {
//  20060911 update by horike
//   if (document.search_form.keyword.value == "キーワードを入力"){
   if (document.search.q.value == "キーワードを入力"){
    document.search.q.value = "";
  }
  document.search.submit();
}

function formCheck() {
	var wc = document.wc
	var len = wc.elements.length;
	var count = 0;
	for (var i = 0; i < len; i++) {
		var e = wc.elements[i];
		if (e.name == "mem[]" && e.checked) {
			count++;
		}
	}
	if (count == 23) {
		return true;
	} else if (count > 23) {
		alert("選択出来るのは23人までです。\n現在" + count + "人選択");
		return false;
	} else {
		alert("23人選択して下さい。\n現在" + count + "人選択");
		return false;
	}
}