function changeImage(newImg) {
document.getElementById('chosenImage').value = newImg;
document.getElementById('card').style.background = "url(" + newImg + ") no-repeat";

}

function changeTradImage(newImg) {
document.getElementById('chosenTradImage').value = newImg;
document.getElementById('printcard').style.background = "url(" + newImg + ") no-repeat";

}

function checkLength() {
	maxLen = 500; // max number of characters allowed
	var printcardMessage = document.getElementById('printcardMessage');
	var textCounter = document.getElementById('textCounter');
	
	if (printcardMessage.value.length >= maxLen) {
		// Reached the Maximum length so trim the textarea
		printcardMessage.value = printcardMessage.value.substring(0, maxLen);
		textCounter.value = maxLen - printcardMessage.value.length;
	}
	else { 
		// Maximum length not reached so update the value of my_text counter
		textCounter.value = maxLen - printcardMessage.value.length;
	}
}