function addtocart(url){
    window.open(url,'mycart','menubar=no,toolbar=no,location=no,directories=no,status=no,scrollbars=1,resizable=0,width=570,top=0,left='+(window.screen.availWidth-570)+',height=250')
}
function mail() {
   var mailUrl = 'mailto:rental@jicheng.net.cn?subject=购买仪器信息咨询&Body=请留下您的联系方式及应用需求，谢谢！&bcc=wangjing@oimec.com.cn';
   document.location = mailUrl;
}