wtf are you talking about? If you're talking about just changing the selected weapon, here.
PHP Code:
for (i = 0; i < weaponscount; i++) { //loop through the weapons
if (strequals(#w(i),WEAPONNAME)) { //check to see if the weapons index i is equal to what you want to change the weapon to
selectedweapon = i; //change the selected weapon
break; //end the loop
}
}