How to break nested for loop within an if statement and switch to another statement when other If condition are met?

I am writing a program for 8051 which uses 2 switch to do two different commands. i.e., When switch 1 is pressed (s1==1), it execute action 1 and when switch 2 is pressed (s2==1), it executes action 2.

What I am trying to achieve here is for example, when action 1 is executing, if switch 2 is pressed, it will break action 1 and execute action 2. The same goes for the opposite case.

Below are my program codes.

#define seg P2
#define leds P3
sbit buzzer at P2_7_bit;
sbit s1 at P1_0_bit;
sbit s2 at P1_7_bit;
unsigned char pattern1[]={0x80,0x40,0x20,0x10,0x8,0x4,0x2,0x1};
unsigned char pattern2[]={0x1,0x2,0x4,0x8,0x10,0x20,0x40,0x80};
unsigned char pattern3[]={0x81,0xC3,0xE7,0xFF,0xE7,0xC3,0x81};
unsigned char pattern4[]={0x1,0x3,0x7,0xF,0x1F,0x3F,0x7F,0xFF};
unsigned char pattern5[]={0x99,0x66};
const int t1 = 600;
const int t2 = 150;
int j,k,pb1,pb2;
void main()
{
 seg=0x0;
 leds=0;
 buzzer=0;
 s1=s2=0;
 while(1)
 {
  if(s1==1)
  {
   for(j=0; j<1; j++)
   {
    seg=0x06; delay_ms(t1); seg=0x0; delay_ms(t2);
    seg=0x6F; delay_ms(t1); seg=0x0; delay_ms(t2);
    seg=0x77; delay_ms(t1); seg=0x0; delay_ms(t2);
    seg=0x3F; delay_ms(t1); seg=0x0; delay_ms(t2);
    seg=0x6F; delay_ms(t1); seg=0x0; delay_ms(t2);
    seg=0x39; delay_ms(t1); seg=0x0; delay_ms(t2);
    seg=0x3F; delay_ms(t1); seg=0x0; delay_ms(t2);
    seg=0x3F; delay_ms(t1); seg=0x0; delay_ms(t2);
    seg=0x06; delay_ms(t1); seg=0x0; delay_ms(t2); 
   }
  }

  if(s2==1)
  {
   seg=0x3F;
   for(j=0; j<2; j++)
   {
    for(k=0; k<8; k++)
    {
     leds=pattern1[k]; delay_ms(250);
    }
    buzzer=1; delay_ms(2000);
    buzzer=0;
   }

   for(j=0; j<3; j++)
   {
    for(k=0; k<8; k++)
    {
     leds=pattern2[k]; delay_ms(250);
    }
    buzzer=1; delay_ms(2000);
    buzzer=0;
   }

   for(j=0; j<4; j++)
   {
    for(k=0; k<7; k++)
    {
     leds=pattern3[k]; delay_ms(250);
    }
    buzzer=1; delay_ms(2000);
    buzzer=0;
   }

   for(j=0; j<5; j++)
   {
    for(k=0; k<8; k++)
    {
     leds=pattern4[k]; delay_ms(250);
    }
    buzzer=1; delay_ms(2000);
    buzzer=0;
   }

   for(j=0; j<10; j++)
   {
    for(k=0; k<2; k++)
    {
     leds=pattern5[k]; delay_ms(250);
    }
    buzzer=1; delay_ms(2000);
    buzzer=0;
   }
   seg=0x0;
   leds=0x0;
  }
 }
}