function check_form(){

	var sForm	=	xGetElementById('form1');

	var keyword	=	sForm.kw.value.trim();

	keyword	 =	keyword.replace(/['"\\`<>?!@#$%^&*\~()\-=+]+/, "");

	url	 =	"/newstore/search.php";

	var tmp	=	'';

	if(keyword && keyword!='关键字')	 tmp+=	 "&kw=" + encodeURIComponent(keyword);

	if( sForm.b.value){
		tmp	 +=	"&b="+sForm.b.value;

	}

	if( sForm.y.value){
		tmp	 +=	"&y="+sForm.y.value;

	}

	if( sForm.m.value){
		tmp	 +=	"&m="+sForm.m.value;

	}

	if( sForm.f.value){
		tmp	 +=	"&f="+sForm.f.value;

	}
		

	if(!tmp){
		alert('请选择搜索条件！');
		return false;
	}
	

	window.location.href	=	url+'?'+tmp;

	return false;

}

//搜索，初始化
function init(obj){
	if(obj.value=='关键字')
		obj.value	=	'';
}