Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here



Validate: StartDate < EndDate by Rougy
Posted: 10 Jun 03 (Edited 16 Jun 03)

Works like a charm for me:

Here's the function:

function checkOut()
  if (document.survey.txtSD.value == "Start Date") {
    alert("Please enter a start date.");
  else {
    if (document.survey.txtSD.value != "End Date") {
      If (Date.parse(document.survey.txtSD.value) > Date.parse(document.survey.txtED.value)) {
        alert("Invalid Date Range!\nStart Date cannot be after End Date!")
        return false;
      else {document.survey.action = "document.asp";}
    else {document.survey.action = "document.asp";}

Here's the form:

<form name="survey" onSubmit="return checkOut(this.form)" method="post">
   <input type="text" name="txtSD" id="StartDateID" value="Start Date" size="8" maxlength=10>
   <input type="text" name="txtED" id="EndDateID" value="End Date" size="8" maxlength=10>
   <input type="Submit" name="cmdSubmit" value="Submit">

Most of you should be able to cut and paste as you need.  The presentation is poor (forgive me, it's hard to get the "}" parts to line up right.)  This came in real handy for me.  Hope it helps.

Back to Javascript FAQ Index
Back to Javascript Forum

My Archive

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close