// original script written by dunstan orchard.

function showAlt(){
	img = document.getElementsByTagName('img');
	for (var i = 0; i < img.length; i++){
		var alt = img[i].getAttribute('alt');
		if ((alt) && (alt != '')){
			var caption = document.createElement('span');
			caption.className = 'cap';
			caption.appendChild(document.createTextNode(alt));
			img[i].parentNode.appendChild(caption);
			img[i].removeAttribute('alt');
		}
	}
}	

window.onload = function()
{
  showAlt();

}