[melky]

function getRandWithNulls(min, max, number_length){
    var res = (Math.round(Math.random()*max) + min).toFixed(0);
    if(res.length < number_length) res = new Array(number_length - res.length + 1).join('0') + res;
    return res;
}



var i = 10, b = []; do b.push(  getRandWithNulls( 0, 73, 2 )   ); while( i-->0 );
alert( b.join('\n') );