You can try this ~
prontera,155,181,5 script Sample 718,{
if( countitem( 7227 ) < 3 ){
mes "You required 3 TCG Card to Switch your Job Class.";
}else{
setarray .Jobists[0],4008,4009,4010,4011,4012,4013,4015,4016,4017,4018,4019,( Sex )?"4020":"4021";
for( set .@i,0; .@i < getarraysize( .JobLists ); set .@i,.@i + 1 ){
set .@Menu$,.@Menu$ + jobname( .JobLists[.@i] )+":";
}
set .@i,select( .@Menu$ ) - 1;
jobchange .@Menu$[.@i];
delitem 7227,3;
mes "You have changed Job into "+jobname( Class );
}
close;
}