function convertToBinary(num) {
var str = num.toString(2);
var len = str.length;
while(len<8) {
str = '0'+str;
len++;
}
return str;
}
function convertToBinary(num) {
var str = num.toString(2);
var len = str.length;
while(len<8) {
str = '0'+str;
len++;
}
return str;
}