Confused on SIMPLE texture change

OK, so i have this simple script i prepared for a client, for a drapery. open and shut commands on channel 8 change it naturally from open to closed. HOWEVER, its not staying on the open texture with the command. It will flash open, then go back to the closed texture, and i am not amused about it at all, since i have done this type of script numerous times. Also had same trouble last evening with coloring. Here is the script i wrote......... naturally, it does not look like this in world. Its 126pm game time and I am IN world, If you can help PLEASE IM me.

default
{
state_entry()
{
llListen(8,"","","open";
llListen(8,"","","shut";
}

listen(integer chan, string name, key id, string message)
{
if(message = "open"
{
llSetTexture("Drapes", ALL_SIDES);}

if(message = "shut"
{
llSetTexture("Drapes - Closed", ALL_SIDES);
}
}
}

You need double equal signs for comparison:

default
{
state_entry()
{
llListen(8,"","","open");
llListen(8,"","","shut");
}

listen(integer chan, string name, key id, string message)
{
if(message == "open"
{
llSetTexture("Drapes", ALL_SIDES);}

if(message == "shut"
{
llSetTexture("Drapes - Closed", ALL_SIDES);
}
}
}

OH GEES I KNEW THAT !!!

Thanks for pointing it out !!