window.onload = go

function go()
{
	var colourList = document.getElementById("nailchart")
	var colours = colourList.getElementsByTagName("A")
	for (var c=0;c<colours.length;c++)
		colours[c].onclick = setPreviewClass
}

function setPreviewClass()
{
	document.getElementById("preview").className = this.parentNode.className
}