javascirpt: 十进制与二进制之间的相互转换算法

十进制转换二进制：

    var c= 0,i = 10,k;
    var g = new Array();

    while(i!=0) {
        k = i%2;
        if(k != 0) {
            i = i-k;
        }
        g.unshift(k);
        i=i/2;
    }

    for(var kk in g) {
        document.write(g[kk])
    }

二进制转换十进制：

var num = 10010010;
    var n = 0,i,tmp,result = 0;
    while(num!=0) {
        tmp = num%10;
        if(tmp == 1) {
            num = num -1;
        }
        if(num == 1) {
            result = result + num*Math.pow(2,n);
        }
        num = num/10;
        result = result + tmp*Math.pow(2,n);
        n++;
        document.write(num + "</br>");
    }
    document.write(result);