/*
Alastair Cassels, Dot Web Design Ltd - www.dotwebdesign.co.uk
*/
// Highlights relevant links and expands margin as required
function marginSwitch(the_mainnav,the_expand,the_highlight) {
	if(the_mainnav) {
		document.getElementById(the_mainnav).className = "selected";
	}
	if(the_expand) {
		document.getElementById(the_expand).style.display = 'block'; // Block of sublinks to expand in margin
	}
	if(the_highlight) {
		document.getElementById(the_highlight).className = "selected"; // Displays highlighted sublink bullet
	}
} // marginSwitch