hmmm, is there a function that kills function?

Like this;
wait(1);
special kill all function before function
var i=integer(random(4));
switch(i)
{
case 0:
var death_percentage = 0;
while(death_percentage < 100)
{
ent_animate(my,NULL,0,0);
ent_animate(my,"die_a",death_percentage,NULL);
death_percentage += 3 * time_step;
wait (1);
}
case 1:
var death_percentage = 0;
while(death_percentage < 100)
{
ent_animate(my,NULL,0,0);
ent_animate(my,"die_b",death_percentage,NULL);
death_percentage += 3 * time_step;
wait (1);
}
case 2:
var death_percentage = 0;
while(death_percentage < 100)
{
ent_animate(my,NULL,0,0);
ent_animate(my,"die_c",death_percentage,NULL);
death_percentage += 3 * time_step;
wait (1);
}
case 3:
var death_percentage = 0;
while(death_percentage < 100)
{
ent_animate(my,NULL,0,0);
ent_animate(my,"die_d",death_percentage,NULL);
death_percentage += 3 * time_step;
wait (1);
}
}
maby???
