One Time Freebie Vendor

Hello all,

I am qute new to scripting and am trying to figure out how to make a freebie vendor that will only allow a given avatar to take one freebie. This is what I have so far...I can't get the syntax quite right and it still is giving multiple items. Any assistance would be much appreciated!

list before;
default
{
touch_start(integer total_number)
{
if(llListFindList(before,[llDetectedKey(0)]) != -1)
{
llSay(0,"Youve already had your free gift!");
}
if(llListFindList(before,[llDetectedKey(0)]) == -1)
{
before += llDetectedKey(0);
llSay(0,"Here is your free gift!");
{
llGiveInventory(llDetectedKey(0),llGetInventoryName(INVENTORY_OBJECT,0));

	}

}
}

Try this

list before;
default
{
	touch_start(integer total_number)
	{
		if(llListFindList(before,[llDetectedKey(0)]) == -1)
		{
			before += llDetectedKey(0);
			llSay(0,"Here is your free gift!");
			llGiveInventory(llDetectedKey(0),llGetInventoryName(INVENTORY_OBJECT,0));
		}
		else llSay(0,"Youve already had your free gift!");
	}
}

That worked like a charm! Thanks so much!