var aImg = document.getElementsByTagName( 'img' );
for (var i = 0; i < aImg.length; i++) { if (aImg[i].onclick != null) { aImg[i].style.cursor = 'pointer'; } }
var aInput = document.getElementsByTagName( 'input' );
for (var i = 0; i < aInput.length; i++) {
if (aInput[i].onclick == null)    { aInput[i].onclick = colorLabel; }
if (aInput[i].type == 'checkbox') { aInput[i].id = aInput[i].name; }
}
var aLabel = document.getElementsByTagName( 'label' );
for (var i = 0; i < aLabel.length; i++) { aLabel[i].id = 'label_' + aLabel[i].htmlFor; }