Need help with linked messages in object!

I'm working on a chemistry model that contains multiple prims linked together that when touched the prims will begin emitting particles that represent the path of molecules. However the problem I'm having is that the individual prims only turn on and off when I click them individually. I'm looking for some way to get it where I can turn all of the emitters on and off with one click. I've done some searching and I'm pretty sure that I need to use something like Link Message but I'm relatively new at scripting so I'm not sure how to do that. I've looked at some example scripts but none of them are really what I'm looking for.

Here are some parameters I'm looking for in the script.

-multiple linked prims containing emitters will turn on and off simultaneously
-the prims will turn on and off when touched by an avatar
-the avatar will be able to touch a prim attached to but is not directly one of the emitters that will activate the script

-I'm also looking at having a text box containing information pop up when the avatar clicks but not critical at this point

If anyone has any suggestions or possible example scripts that would be great!


Thanks!

Try something like this...

In the parent prim script:
touch_start(integer total_number)
{
if( g_bParticlesOn == 1 )
{ g_bParticlesOn = 0;
llMessageLinked(LINK_ALL_CHILDREN, 0, "", NULL_KEY);
}
else
{ g_bParticlesOn = 1;
llMessageLinked(LINK_ALL_CHILDREN, 1, "", NULL_KEY);
}
}

In each of your particle emitter prims:
link_message(integer sender_number, integer bParticlesOn, string message, key id)
{
if (bParticlesOn== 1)
ShowParticles();
else
HideParticles();

}

Something like that

Here's my example of how to do it. Note that linked messages can be dropped on occasion. If you want to ensure messages are always received then you should set the messenger script to listen for linked messages as well and have the listener scripts send a reply to let the messenger script know the message was received. As for dialog menus, they would be easy to add. You can find everything you need on the wiki's and on this forum if you search.

Root prim script (messenger)

integer toggle; // keep track of on/off status

defaults()
{
    toggle = FALSE; // off
}

particles_on()
{
// particle code here
}

default
{
    state_entry()
    {
        defaults(); // set script variables
    }

    touch_start(integer total_number)
    {
        if (toggle == FALSE)
        {
            toggle = TRUE; // on
            particles_on();            
            // tell other prims to turn on using integer value of 1
            llMessageLinked(LINK_ALL_OTHERS,1,"",""); // send integer value of 1 which means on
        } else
        if (toggle == TRUE)
        {
            toggle = FALSE; // off
            llParticleSystem([]); // turn particles off
            llMessageLinked(LINK_ALL_OTHERS,0,"",""); // send integer value of 0 which means off
        }
    }
}

Linked prim script (listener)

particles_on()
{
// particle code here
}

default
{
    link_message(integer sender_num, integer num, string str, key id)
    {
        if (num == 1)
        {
            llOwnerSay("On message received for link "+(string)llGetLinkNumber()+".");
            particles_on();            
        } else
        if (num == 0)
        {
            llOwnerSay("Off message received for link "+(string)llGetLinkNumber()+".");            
            llParticleSystem([]);
        }
    }
}