var arrNumbers = [69,45,89,2,102,4,78,53,64,37,12,57,3];

for(var i=1;i<arrNumbers.length;i++){
	
	var key = arrNumbers[i];
	var j = i;
	
	while(j>0 && arrNumbers[j-1] > key){
		arrNumbers[j] = arrNumbers[j-1];
		j = j-1;	
	}
	arrNumbers[j] = key;
}	

console.log(arrNumbers);