}
}
/*
Receives the lowest and highest values of a range and
returns a random integer that falls within that range.
*/
function randomInteger(low, high)
{
return low + Math.floor(Math.random() * (high – low));
}
/*
Receives the lowest and highest values of a range and
returns a random float that falls within that range.
*/
function randomFloat(low, high)
{
return low + Math.random() * (high – low);
}
/*
Receives a number and returns its CSS pixel value.
*/
function pixelValue(value)
{
return value + ‘px’;
}
/*
Returns a duration value for the falling animation.
*/
function durationValue(value)
{
return value + ‘s’;
}
/*
Uses an img element to create each leaf. "Leaves.css" implements two spin
animations for the leaves: clockwiseSpin and counterclockwiseSpinAndFlip. This
function determines which of these spin animations should be applied to each leaf.
*/
function createALeaf()
{
/* Start by creating a wrapper div, and an empty img element */
var leafDiv = document.createElement(‘div’);
var image = document.createElement(‘img’);
/* Randomly choose a leaf image and assign it to the newly created element */
