Basic LED blinking in PIC

#include<pic.h>

void DELAY();

void main()

{

TRISB=0X00;

while(1)

{

PORTB=0XFF;

DELAY();

PORTB=0X00;

DELAY();

}

}

void DELAY()

{

int i,j;

for(i=0;i<100;i++)

for(j=0;j<100;j++);

}