Simple Form Validation Help

2 New Member

This is simple, SO simple but I dont know how to do it!!

I have 5 text boxes on one page (all contain numbers).

The 5th box is the sum of the first four.

I need to validate it so that the the value of the first 4 text boxes is either "0" or greater than 40

- the default of these is "0" so I thought a validation onChange() would help here??

....and the fifth box (the total) needs to always be greater than "120"

Please help, I just can't get my head around it!!

Thank you

Apr 6 '07 #1

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1399

AricC

1,892

Recognized Expert Top Contributor

This is simple, SO simple but I dont know how to do it!!

I have 5 text boxes on one page (all contain numbers).

The 5th box is the sum of the first four.

I need to validate it so that the the value of the first 4 text boxes is either "0" or greater than 40

- the default of these is "0" so I thought a validation onChange() would help here??

....and the fifth box (the total) needs to always be greater than "120"

Please help, I just can't get my head around it!!

Thank you

What code do you have thus far?

Apr 6 '07 #2

DutchKingCobra

New Member

Hi pal

it would help if u posted a bit of your code!!!
but maybe this helps

EXAMPLE

Expand|Select|Wrap|Line Numbers

  
<html>

<!-- Created on: 7-4-2007 -->

<head>

  <title></title>

  <meta name="author" content="DutchKingCobra@live.nl">

<script language="JavaScript1.2" >

function Validate(){ 
 
if (Form1.textbox1.value == ''){alert('textbox1 is empty');return false;}

else if (Form1.textbox1.value == 0 || Form1.textbox1.value > 40){alert('Please enter a number between 0 and 41');return (false);}
 
if (Form1.textbox2.value == ''){alert('textbox2 is empty');return false;}

else if (Form1.textbox2.value == 0 || Form1.textbox2.value > 40){alert('Please enter a number between 0 and 41');return (false);}
 
if (Form1.textbox3.value == ''){alert('textbox3 is empty');return false;}

else if (Form1.textbox3.value == 0 || Form1.textbox3.value > 40){alert('Please enter a number between 0 and 41');return (false);}
 
if (Form1.textbox4.value == ''){alert('textbox4 is empty');return false;}

else if (Form1.textbox4.value == 0 || Form1.textbox4.value > 40){alert('Please enter a number between 0 and 41');return (false);}
 
if (Form1.textbox5.value == ''){alert('textbox5 is empty');return false;}

else if (Form1.textbox5.value == 0 || Form1.textbox5.value < 120){alert('minimum 120');return (false);}
 
else {return (true);}

}

</script>

</head>

<body>

<form name="Form1" action="" onsubmit="Validate()">

<input type="text" name="textbox1" size="40" value="enter a value between 0 and 41" maxlength="256"><br>

<input type="text" name="textbox2" size="40" value="enter a value between 0 and 41" maxlength="256"><br>

<input type="text" name="textbox3" size="40" value="enter a value between 0 and 41" maxlength="256"><br>

<input type="text" name="textbox4" size="40" value="enter a value between 0 and 41" maxlength="256"><br>

<input type="text" name="textbox5" size="40" value="total" maxlength="256"><br>

<input type="submit" value="submit">
 
</form>

</body>

</html>

Apr 7 '07 #3

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