gistfile1.txt

var ar;
ar=[];

ar[0]=0;

for (var i=1; i<=100; i++) {
	
	ar[i]=i;
	
};

alert ("ar="+ar);

// ===============================================



var b;
b=[];

var r;
r=2;


while ( r*r < (ar.length-1)  ) {
	
		
			
	b = erast(ar,r);
		
	
	ar=b;
	

	
	r=r+1;
};





function erast(a,n) {
	
	
		
	
	var i;
	i=2;
	
	
		
	while ( (n*i) <= (a.length-1) ) {
		
		
		
		a[ n *i ] = 0;
		
		
		
		i = i + 1;
				
	};
			
			
	return a;
	
};




var q;
q=[];

var j;
j=0;

for ( var i=0; i <= b.length-1; i++  ) {
	
	if ( b[i] != 0 ) {
		q[j]=b[i];
		j=j+1;
		
		};
	
	
};


alert ( q );