function showImage(num) {
    document.getElementById('image1').style.display = 'none';
    document.getElementById('image2').style.display = 'none';
    document.getElementById('image3').style.display = 'none';
    document.getElementById('image' + num).style.display = 'inline'; 
}


function showProductDetailText(h1) {
    if (h1.nextSibling != null && h1.nextSibling != 'undefined') {
	contentDiv = document.getElementById("productDescription");
	if (h1.nextSibling.nodeValue == "\n") {
		clonedNode = h1.nextSibling.nextSibling.cloneNode(true);
	}
	else {
		clonedNode = h1.nextSibling.cloneNode(true);
	}
	contentDiv.replaceChild(clonedNode, contentDiv.firstChild);
    }
}


var items = document.getElementById("productDetails").childNodes;
var defaultContentPlaced;
defaultContentPlaced = false;
for (i = 0; i < items.length; i++) {
    if (items[i].nodeName.toLowerCase() == 'h1') {
        items[i].onclick = function() {
            showProductDetailText(this);
            return true;
        }
    }
    else if (defaultContentPlaced == false && items[i].nodeName.toLowerCase() == 'p') {
        contentDiv = document.getElementById("productDescription");
     	clonedNode = items[i].cloneNode(true);
        contentDiv.replaceChild(clonedNode, contentDiv.firstChild);
	defaultContentPlaced = true;
    }
}