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malky800
Posts: 116
Joined: 1/11/2006
Status: offline
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javascript date verification - 7/29/2008 14:57:22
I looked online for a javascript date verification script. After alot of work I managed to adapt it to my form and get it work. Now no matter what I type in the date field, it tells me is invalid. Even if it really is.
What is wrong with the script?
var input = theForm.DOB.value;
var validformat=/^\d{2}\/\d{2}\/\d{4}$/ //Basic check for format validity
var returnval=false
if (!validformat.test(input.value)) {
alert("Invalid Date Format. Please correct and submit again.")
theForm.DOB.focus();
return (false);
}
else{ //Detailed check for valid date ranges
var monthfield=input.value.split("/")[0]
var dayfield=input.value.split("/")[1]
var yearfield=input.value.split("/")[2]
var dayobj = new Date(yearfield, monthfield-1, dayfield)
if ((dayobj.getMonth()+1!=monthfield)||(dayobj.getDate()!=dayfield)||(dayobj.getFullYear()!=yearfield)) {
alert("Invalid Day, Month, or Year range detected. Please correct and submit again.")
theForm.DOB.focus();
return (false);
}
}
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TexasWebDevelopers
Posts: 202
Joined: 2/22/2002
From:
Status: offline
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RE: javascript date verification - 7/29/2008 20:11:01
This works--
<script language="JavaScript">
<!--
function checkdate(input){
var validformat=/^\d{2}\/\d{2}\/\d{4}$/ //Basic check for format validity
var returnval=false
if (!validformat.test(input.value))
alert("Invalid Date Format. Please correct and submit again.")
else{ //Detailed check for valid date ranges
var monthfield=input.value.split("/")[0]
var dayfield=input.value.split("/")[1]
var yearfield=input.value.split("/")[2]
var dayobj = new Date(yearfield, monthfield-1, dayfield)
if ((dayobj.getMonth()+1!=monthfield)||(dayobj.getDate()!=dayfield)||(dayobj.getFullYear()!=yearfield))
alert("Invalid Day, Month, or Year range detected. Please correct and submit again.")
else
returnval=true
}
if (returnval==false) input.select()
return returnval
}
//-->
</script>
<form action="" name="theForm" id="theForm" onSubmit="return checkdate(this.DOB)">
<input name="DOB" type="text">
<input name="" type="submit">
</form>
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malky800
Posts: 116
Joined: 1/11/2006
Status: offline
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RE: javascript date verification - 7/30/2008 11:52:21
Thank you for your answer, except, your script only validates that one date field from the form. My validation script is running along a long string of other validations from a long form. How can I get it to return false in the middle of the script instead of getting just a return on one function?
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