changing font color of a text box

the best way to do that would be using CSS. Simple use:

style="color: green" in your input tag.

Do you want this when a user clicks the button? Or when they change the text of the texbox? Anyhow here's a function:

function colour() {
if(document.form.textbox.value=='yes')
{document.form.textbox.style.color='green'}
if(document.form.textbox.value=='no')
{document.form.textbox.style.color='red'}
}

Sorry MatrixDud, didn't see your last post.

jm_jackson,
Or you could implement it right into the onChange of your textbox:

<input type='text' name='textbox' onChange="if(this.value=='yes'){this.style.color='green'}if(this.value=='no'){this.style.color='red'}">

or in a button:

<input type='button' onClick="if(document.form.textbox.value=='yes'){document.form.textbox.color='green'}if(document.form.textbox.value=='no'){document.form.textbox.style.color='red'}">

You may also want to use toLowerCase(), since the user might type in 'Yes' or 'YES' instead of'yes':

if(document.form.textbox.value.toLowerCase=='yes')

oops...I didn't read the whole question: this will work

<input name="textBox" type="text" onChange="if( this.value == 'yes') this.style.color = 'green'; else if( this.value == 'no') this.style.color = 'red';">

oops...sorry lil_puffball

:D
MatrixDud,
Funny how we keep missing each other! :)

hi, thanks for the help guys. I'm still havin a bit of trouble. I know it should be simple! I'm using a drop down select box and want the text in the text box to change colour when a different selection is made in the drop down select box. Got any ideas?

hi, thanks for the help guys. I'm still havin a bit of trouble. I know it should be simple! I'm using a drop down select box and want the text in the text box to change colour when a different selection is made in the drop down select box. Got any ideas?

Thanks. I've managed to sort it now.

Your welcome. Is there any reason for the B?