topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

talk show tell print

basic-javascript-06-ch6-examp4.htm / htm



  <html>
  <head>
  <script language="JavaScript" type="text/javascript">
  function butCheckForm_onclick()
  {
     var myForm = document.form1;
     if (myForm.txtAge.value == "" || myForm.txtName.value == "")
     {
        alert("Please complete all the form");
        if (myForm.txtName.value == "")
        {
           myForm.txtName.focus();
        }
        else
        {
           myForm.txtAge.focus();
        }
     }
     else
     {
        alert("Thanks for completing the form " + myForm.txtName.value);
     }
  }
  function txtAge_onblur()
  {
     var txtAge = document.form1.txtAge;
     if (isNaN(txtAge.value) == true)
     {
        alert("Please enter a valid age");
        txtAge.focus();
        txtAge.select();
     }
  }
  function txtName_onchange() 
  {
     window.status = "Hi " + document.form1.txtName.value;
  }
  </script>
  </head>
  <body>
  <form name=form1>
     Please enter the following details:
     <p>
     Name:
     <br>
     <input type="text" name=txtName onchange="txtName_onchange()">
     <br>
     Age:
     <br>
     <input type="text" name=txtAge onblur="txtAge_onblur()" size=3 maxlength=3>
     <br>
     <input type="button" value="Check Details" name=butCheckForm 
        onclick="butCheckForm_onclick()">
  </form>
  </body>
  </html>
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

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