JavaScript regular form verification (user name, password, confirmation password, mobile phone number, landline number, social Security number)

1, about the JavaScript form verification, if the use of bidirectional binding front-end JS frame, it will be much easier. But bloggers still suggest that you do not leave the source JS itself. Because the source of JS is the kingly way.

Attention:

A, error message in the code may not be found in the code, "error. jpg" IMAGE, make a

b, the validation of the judgment has been completed, only need to be based on their own validation rules to form validation, replace their regular expression.

C, the blogger error message image inserted in this document. It needs to be renamed "error. jpg" and is placed under the HTML root directory.

(Error message picture)

<! DOCTYPE html>//User Name Verificationdocument.form1.username.onkeyup=function(){        varreg=/^[a-za-z]{1}[a-z|a-z|0-9]{5,29}/; if(Reg.test ( This. Value) && This.value.length>=6&& This. value.length<=30) {document.getElementById ("Namemsg"). innerhtml= "Input correct"; }Else{document.getElementById ("Namemsg"). Innerhtml= " '; }     }     //Password Verificationdocument.form1.pwd.onkeyup=function(){        varreg1=/[a-za-z]+[0-9]+/; if(Reg1.test ( This. Value) && This.value.length>=6&& This. value.length<=8) {document.getElementById ("Pwdmsg"). innerhtml= "Input correct"; }Else{document.getElementById ("Pwdmsg"). Innerhtml= " '; }     }     //Confirm Passworddocument.form1.pwd1.onkeyup=function(){         if( This.value==document.form1.pwd.value&& This. value!= "") {document.getElementById ("Pwd1msg"). innerhtml= "Input correct"; }Else{document.getElementById ("Pwd1msg"). Innerhtml= " '; }     }     //Mobile phone number verificationdocument.form1.phone.onkeyup=function(){         varreg2=/^ (13|14|15|17|18) [0-9]{9}/; if(Reg2.test ( This. Value) && This. value.length==11) {document.getElementById ("Iphone1"). innerhtml= "Input correct"; }Else{document.getElementById ("Iphone1"). Innerhtml= " '; }       }     //Phone number Verificationdocument.form1.phone1.onkeyup=function(){         varreg3=/^[0-9]{3,4} (\-{1}) [0-9]{7,8}/; if(Reg3.test ( This. Value) && This. value.length==13| | This. value.length==12) {document.getElementById ("Iphone2"). innerhtml= "Input correct"; }Else{document.getElementById ("Iphone2"). Innerhtml= " '; }     }     //Identification Number Verificationdocument.form1.sfzid.onkeyup=function(){         varreg4=/^\d{17}[(0-9) | X|x]{1}/; if(Reg4.test ( This. Value) && This. value.length==18) {document.getElementById ("Sfzmsg"). innerhtml= "Input correct"; }Else{document.getElementById ("Sfzmsg"). Innerhtml= " '; }     }     //Register Button Method     functionTest () {varstr= "Input Correct"if(document.getElementById ("namemsg"). innerhtml!==str) {document.getElementById ("Namemsg"). Innerhtml= " ';            Document.form1.username.focus (); Document.form1.username.value=""; return false; }         if(document.getElementById ("pwdmsg"). innerhtml!==str) {document.getElementById ("Pwdmsg"). Innerhtml= " ';            Document.form1.pwd.focus (); Document.form1.pwd.value=""; return false; }         if(document.getElementById ("pwd1msg"). innerhtml!==str) {document.getElementById ("Pwd1msg"). Innerhtml= " ';            Document.form1.pwd1.focus (); Document.form1.pwd1.value=""; return false; }         if(document.getElementById ("iphone1"). innerhtml!==str) {document.getElementById ("Iphone1"). Innerhtml= " ';            Document.form1.phone.focus (); Document.form1.phone.value=""; return false; }         if(document.getElementById ("Iphone2"). innerhtml!==str) {document.getElementById ("Iphone2"). Innerhtml= " ';            Document.form1.phone1.focus (); Document.form1.phone.value=""; return false; }     }   </script></body>
JavaScript regular form verification (user name, password, confirmation password, mobile phone number, landline number, social Security number)