function keyword_reset(type){

		if(type == "keyword"){
			document.web_serch.keyword.value = '';
		} else if(type == "keyword2"){
			document.web_serch2.keyword.value = '';
		} else if(type == "id"){
			document.loginform.login_id.style.backgroundImage = '';
		} else if(type == "pw"){
			document.loginform.login_pass.style.backgroundImage = '';
		}

	}