if(strcmp(cmdtext, "/up", true) ==0)
{
	new upnum[256], index;
	upnum = strtok(cmdtext, index);
   	if(!strlen(upnum))
	{
   		SendErrMsg(playerid, "Usage: /up <Amount to go up by>");
   	}
   	else
   	{
		new Float:x, Float:y, Float:z;
		GetPlayerPos(playerid, x, y, z);
		SendInfMsg(playerid, "You are moved up");
		SetPlayerPos(playerid, x, y, z + strval(upnum));
	}
	return 1;
}