Delete default value in the field

[viki1967]

Hi all.

I have this:

<input type="text" name="agg" size="30" value="---" readonly>

<select size="1" name="provv" onchange="var cc = this.options[this.selectedIndex].value; if(cc=='GAM')Popup(400,200,'GAM.asp');">
<option value="">---------</option>
<option value="GAM">GAM</option>
<option value="GBM">GBM</option>
</select>

If select GAM value open popup... I need if select GAM the value of field input type text "agg" is value null, deleted default value "---"... it's possible ?

Can you help me?

[Dormilich]

I need if select GAM the value of field input type text "agg" is value null, deleted default value "---"... it's possible ?

sure, though it’d be easier, if you gave the field an id.

[viki1967]

One example please....?

[Dormilich]

let’s try the obvious first

document.getElementById(…).value = "";