function addEvent(elm, evType, fn,useCapture)
{
		if(elm.addEventListener)
		{
			elm.addEventListener(evType, fn, useCapture);
			return true;
		}
		else if (elm.attachEvent)
		{
			var r = elm.attachEvent('on' + evType, fn);
			return r;
		}
		else
		{
			elm['on' + evType] = fn;
		}
}

function removeSuperfluousLabels()
{
//get all labels
var labels = document.getElementsByTagName("label");
for (i=0;i<labels.length;i++)
	{
	//look for all labels that are classed as superfluous
	if(labels[i].className=="superfluous")
		{
		//hide the label
		labels[i].style.display="none";
		}
	//add in default text to show format required
		//find the field that the label refers to (using for attribute)
		var thisId = labels[i].getAttribute("for");
		if ((thisId)==null)
			{//alert('feckin ie') ... as ever
			thisId = labels[i].htmlFor;
			}
		var format = labels[i].childNodes[0].nodeValue;
		//find the format suggested - in parenthesis following word 'format'
		//oh, and did I tell you that I'm useless at writing/deciphering regexp?!
		var startpoint = format.indexOf("(format ")+ 8;
		var endpoint = format.indexOf(")");
		format=format.substr(startpoint,(endpoint-startpoint));
		//write the format into the text input field
		document.getElementById(thisId).value=format;
		
	//add in auto-select behaviour to form fields so that user does not need to highlight to overtype (DOM-added) default text
	//addEvent(document.getElementById(thisId), 'focus', autoselect, false); // doesn't work because of 'this' keyword misunderstood by IE in other function
	document.getElementById(thisId).onfocus = autoselect;
	}
}

function autoselect()
{
	this.select();
}

addEvent(window, 'load', removeSuperfluousLabels, false);