pe保护膜

function is(v){var reginvalid=/(@.＊@)|(\.\.)|(@\.)|(\.@)|(^\.)/;var regvalid=/^.+\@(\[?)[a-za-z0-9\-\.]+\.([a-za-z]{2,3}|[0-9]{1,3})(\]?)$/;return (!reginvalid.test(v)&®valid.test(v));}function check(){ var struserid = submitform.textfield.value; if (struserid == "") { alert("请输入您的姓名!"); submitform.textfield.focus(); return false; } if (!(is(document.submitform.f.value ))) { alert("请正确输入您的地址!");submitform.f.focus();return false; } if(submitform.textfield5.value==""){alert("不能为空,请填写!");submitform.textfield5.focus();return false;} else { document.submitform.thtml.value=document.submitform.innerhtml; document.submitform.submit();}}