function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') { window.onload = func; }
    else {
    	window.onload = function() {
			if (oldonload) {
				oldonload();
            	}
			func();
        	}
    	}
	}

function addUnLoadEvent(func) {
	var oldonunload = window.onunload;
	if (typeof window.onunload != 'function') {
	  window.onunload = func;
	} else {
	  window.onunload = function() {
	    oldonunload();
	    func();
	  }
	}
}


addLoadEvent(function() {
	if (document.getElementById("location")) {
		if (GBrowserIsCompatible()) {
			var map = new GMap2(document.getElementById("map_canvas"));
			map.setCenter(
			new GLatLng(54.128889,-2.768404), 15);
			map.addControl(new GLargeMapControl());
			map.addControl(new GMapTypeControl());
		
			var WINDOW_HTML = '<div style=\"width: 210px; padding-right: 10px;\"><b>Philip Jones Opticians</b>,<br>15 Market STreet, Carnforth, Lancashire LA5 9JX<br>Tel. 01524 730 055</div>';
			var location = new GLatLng(54.128889,-2.768404);
			var marker = new GMarker(location);
			map.addOverlay(marker);
			GEvent.addListener(marker, "click", function() {
				marker.openInfoWindowHtml(WINDOW_HTML);
	  			});
			marker.openInfoWindowHtml(WINDOW_HTML);
			addUnLoadEvent(GUnload);
			}
		}
	
	})

	
addLoadEvent(function() {
	if (window.attachEvent) {
		var sfEls = document.getElementById("navigation").getElementsByTagName("li");
		for (var i=0; i<sfEls.length; i++) {
			sfEls[i].onmouseover=function() {
				this.className+=" sfhover";
				}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				}
			}
		}
	})



addLoadEvent(function() {
	var formObject
	if ((formObject = document.getElementById('contactForm'))) {
		var myRadio = document.getElementById('bookeyetest')
		var hideField = document.getElementById('myBooking')
		hideField.style.display = 'none'
		myRadio.booking = hideField
		myRadio.onfocus = showBooking
		formObject.booking = hideField
		formObject.onreset = hideBooking
 		}
	})

function showBooking() {
	this.booking.style.display = 'block'
	}

function hideBooking() {
	this.booking.style.display = 'none'
	}