function shownews(url,id){

var win = null;
var myname="";
var w=600;
var h=500;
var scroll="yes";
var fname=url+"?id="+id

LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
win = window.open(fname,myname,settings)
}

function add_product(){
	if(document.form1.lemma.value==""){
		alert("请填写产品名称！");
		return false;
	}
	if(document.form1.type.value==""){
		alert("请选择产品类别！");
		return false;
	}
}
function test(){
	if(document.form1.lemma.value==""){
		alert("请填写标题！");
		return false;
	}
	if(document.form1.tests.value==""){
		alert("请填写详细内容！");
		return false;
	}
	return true;
}

function check_form(){

if (document.searchform.keywords.value=="") {	
alert ("请输入搜索关键词");
document.searchform.keywords.focus();
return false;
}
return true;

}
//弹出窗口
function open_win(url,names,seting) { 

window.open(url,names,seting);

}