Hi,

This may be a really simple solution; I'm not sure, as I'm new to javascript.

I have a form with a bunch of hidden inputs, that are generated based on a MYSQL database (a couple hundred entries). For example:

PHP Code:

<input type=hidden name=mass[123] value=0> 


When the user inputs a value into a text input and clicks a button, I want the page to store the value of the text input to the hidden input. I can get the page to forward the variable, containing the number of the field (eg: 123), but can't seem to get it to alter the input.

Currently I have:

PHP Code:

function addMass(id)
{
    var form = document.recipe.mass[id];
    form.value = document.formMass.mass.value;
    
} 


Does anyone know a) why this isn't working and b) how I can change it so it does work?

Thanks in advance; any help is appreciated.
Scott

function addMass(id)
{
var idFieldName = "mass" + id;
var form = document.recipe[idFieldName];
form.value = document.formMass.mass.value;
}

Try that. If that doesn't work for you, then we'd have to see your code.

I seem to have solved it after I played around with the code a little more. The final function I came up with was:

function addMass(id)
{
    var form = document.getElementById("mass"+id);
    form.value = document.formMass.mass.value;
    
}

It isn't in an array, but I can use the php to extract the information from the $_POST[mass#] variable.

Thank you very much for your response; it helped a great deal and is very much appreciated.

Thanks again,
Scott