var FormMessage = "

" FormMessage = FormMessage + ""; FormMessage = FormMessage + ""; FormMessage = FormMessage + ""; FormMessage = FormMessage + ""; FormMessage = FormMessage + ""; FormMessage = FormMessage + ""; FormMessage = FormMessage + "

您的姓名:
地址:
电子邮件:
联系电话:
您的问题:
详细描述:

"; document.writeln (FormMessage); function validate_form() { var p, num; if (FormPage.Name.value.length<1){ alert("请填写您的姓名!"); FormPage.Name.select(); FormPage.Name.focus(); return false; } if (FormPage.Address.value.length<1){ alert("请填写地址!"); FormPage.Address.select(); FormPage.Address.focus(); return false; } if (FormPage.Email.value.length>50 || FormPage.Email.value =="" ){ alert("请填写有效的电子邮箱!"); FormPage.Email.select(); FormPage.Email.focus(); return false; }else{ p=FormPage.Email.value.indexOf("@"); if (p < 1 || p == (FormPage.Email.value.length - 1)){ alert("请填写有效的电子邮箱!"); FormPage.Email.select(); FormPage.Email.focus(); return false; } } if (FormPage.Tel.value.length<1){ alert("请填写联系电话!"); FormPage.Tel.select(); FormPage.Tel.focus(); return false; } if (FormPage.Title.value.length<1){ alert("请填写您的问题!"); FormPage.Title.select(); FormPage.Title.focus(); return false; } if (FormPage.Message.value.length<1){ alert("请填写详细描述!"); FormPage.Message.select(); FormPage.Message.focus(); return false; } if (FormPage.Message.value.length>590){ alert("详细描述字数太多!"); FormPage.Message.select(); FormPage.Message.focus(); return false; } }