Simple JavaScript verification external focus change

xiaoxiao2021-03-06  21

Function check () {

IF (Document.news.title.Value == "") {

Alert ("Please enter the title name");

Document.news.title.focus (); // set focus

Return False;

}

IF (Document.news.username.Value == "") {

Alert ("Please enter your user name");

Document.news.username.focus ();

Return False;

}

IF (Document.news.password.value == "") {

Alert ("Please enter your password");

Document.news.password.focus ();

Return False;

}

IF (Document.news.Authortype.Value == "0") {

Alert ("Select Unit");

Document.news.authortype.focus ();

Return False;

}

IF (Document.news.NewStype.Value == "0") {

Alert ("Select Category");

Document.news.newstype.focus ();

Return False;

}

}

transfer:

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