Pseudocoded

var lawn = document.getElementById('lawn');
 
var grass = lawn.childNodes;
 
for ( var i = 0; i < grass.length; i++ ) {
 
    var blade = grass[i];
 
    blade.style.color = '#EEDD77';
 
    blade.style.height = '.25in';
 
    blade.onclick = function() {
 
        sound.src = 'crunch.wav';
        sound.play();
    };
 
    if ( date.getMonth() == 8 )
        blade.style.display = 'none';
 
}