html, javascript, php question

[Jay59express]

Hi,
I have two <select> menus that get populated by information from a file by php. They both contain the same elements. The second menu is hidden in a layer and gets shown when the user clicks a radio button. What I would like to be able to do is have the second menu have the option that is selected in the first menu be selected. So I guess the basic question is whether or not it is possible to have the selected value in a <select> menu be changed without having to repopulate it.

some variables:
<form name = publishForm>
<select name = tech...> 1st menu
<select multiple name = data_techs[] (this is technically a select multiple, but I just want to set one value, namely the one that matches tech)

 

[Barnaby W. Füi]

Definitely gonna be a javascript job. I'm tryin to learn javascript to do stuff like this too, but I don't know much of anything yet.

 

[Jay59express]

Well, I can do it if the name of the second script is "data_techs" instead of "data_techs[]", but the [] kills it.

 

[eklass]

function selectOption(arg){
var formName = 'checkout_b';
var selectName = 's_state';
if(arg != ''){
for(var i=0;i<eval("document." + formName + "." + selectName + ".length");i++){
if(eval("document." + formName + "." + selectName + ".options.value") == arg){
eval("document." + formName + "." + selectName + ".selectedIndex = i");
}
}
}
}


arg should be the value you want to set as active. you figure out the rest 🙂

 

[Barnaby W. Füi]

BTW, the forums messed up that post, hit "quote", and you'll see the code as it is intended to be (with indents too 😛)

 

[eklass]

hmmm... we need a way to paste preformatted text...

do i hear forum issues calling?