function CheckLogin_onsubmit() { if (document.form2.LoginName.value=="") { alert("请输入用户名") document.form2.LoginName.focus() return false } if (document.form2.LoginPass.value=="") { alert("请输入密码") document.form2.LoginPass.focus() return false } if (document.form2.vImageCodP.value=="") { alert("请输入验证码") document.form2.vImageCodP.focus() return false } } document.write(" "); document.write(""); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(" "); document.write(""); document.write("
用户名:
密 码:
验证码:"); document.write(" ");document.write(" "); document.write(" ");document.write(""); document.write("
");