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Validation

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.");
    return(false);
  }
  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">
</form>

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.

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