window.onload = function(){
	setSearchVehavior();
	setSearch2Vehavior();
	setNewWin();
}
function setSearch2Vehavior(){
	document.getElementById("search-2").onsubmit = function(){
		if(!(document.getElementById("target-1").checked || document.getElementById("target-2").checked || document.getElementById("target-3").checked || document.getElementById("target-4").checked)){
			alert("検索対象項目が未選択です。");
			document.getElementById("target-1").focus();
			return false;
		}else{
			var keyword = trim(document.getElementById("keyword-2").value);
			if(! keyword){
				alert("検索文字列が未入力です。");
				document.getElementById("keyword-2").focus();
				return false;
			}
		}
	}
}