// Default JavaScript File for www.strangecurrencies.co.uk

// Get the latest year

var today = new Date();
var thisYear = today.getFullYear();


// Random image selector (homepage)

var theImages = new Array()

theImages[0] = 'images/mainpic-01.jpg'
theImages[1] = 'images/mainpic-02.jpg'
theImages[2] = 'images/mainpic-03.jpg'
theImages[3] = 'images/mainpic-04.jpg'
theImages[4] = 'images/mainpic-05.jpg'

var j = 0
var p = theImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
document.write('<img src="'+theImages[whichImage]+'" height="398" width="600" alt="Strange Currencies Main Picture" />');
}

// Random image selector (captchas)

var theCaptcha = new Array()

theCaptcha[0] = 'images/captcha_01.png'
theCaptcha[1] = 'images/captcha_02.png'
theCaptcha[2] = 'images/captcha_03.png'
theCaptcha[3] = 'images/captcha_04.png'
theCaptcha[4] = 'images/captcha_05.png'
theCaptcha[5] = 'images/captcha_06.png'

var j = 0
var p = theCaptcha.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theCaptcha[i]
}
var whichCaptcha = Math.round(Math.random()*(p-1));
function showCaptcha(){
document.write('<img src="'+theCaptcha[whichCaptcha]+'" height="50" width="150" alt="Enter the characters from this image into the box below" />');
}

// Clear pre-filled fields (contact form)

function clearText(thefield){
if (thefield.defaultValue==thefield.value)
thefield.value = ""
}