var initWord = '検索したい商品を入力してください';



function searchBoxSet(){

	var searchBox = $('item_name');

	if( searchBox.value == '' ){

		searchBox.style.color = '#999999';

		searchBox.value = initWord;

	}

}



function onblurSearchWord(){

	var searchBox = $('item_name');

	if( searchBox.value == "" ){

		searchBox.style.color = '#999999';

		searchBox.value = initWord;

	}

}



function onfocusSearchWord(){

	var searchBox = $('item_name');

	if( searchBox.value == initWord ){

		searchBox.style.color = '#000000';

		searchBox.value = '';

	}

}



function onsubmitSearchWord(){

	var searchBox = $('item_name');

	if( searchBox.value == initWord ){

		return false;

	}else if( searchBox.value == '' ){

		return false;

	}

	return true;

}