You're mixing GS1 and GS2, which is always bad. You also don't seem to have a grasp of clientside and serverside.
PHP Code:
function onPlayerChats() {
if (player.chat == "/start") {
for (temp.i = 5; i > 0; i --) {
chat = i;
sleep(1);
}
chat = "Begin Sparring!";
hide();
sleep(1);
chat = "";
}
if (player.chat == "/reset" && player.guild == "Events Team") {
sleep(.1);
show();
}
}