function over(img,ref) { document.images[img].src = ref; }
function out(img,ref) { document.images[img].src = ref; }

a1=new Image;a1.src="img/buttons/1.jpg";
a2=new Image;a2.src="img/buttons/1_a.jpg";
a3=new Image;a3.src="img/buttons/2.jpg";
a4=new Image;a4.src="img/buttons/2_a.jpg";
a5=new Image;a5.src="img/buttons/3.jpg";
a6=new Image;a6.src="img/buttons/3_a.jpg";
a7=new Image;a7.src="img/buttons/4.jpg";
a8=new Image;a8.src="img/buttons/4_a.jpg";
a9=new Image;a9.src="img/buttons/5.jpg";
a10=new Image;a10.src="img/buttons/5_a.jpg";
a11=new Image;a11.src="img/buttons/6.jpg";
a12=new Image;a12.src="img/buttons/6_a.jpg";
a13=new Image;a13.src="img/buttons/7.jpg";
a14=new Image;a14.src="img/buttons/7_a.jpg";
a15=new Image;a15.src="img/buttons/galb.jpg";
a16=new Image;a16.src="img/buttons/gal.jpg";



function defaultStyle() {
	document.getElementById("style1").href = "custom.css";
}
function mediumStyle() {
	document.getElementById("style1").href = "medium/custom.css";
}
function largeStyle() {
	document.getElementById("style1").href = "large/custom.css";
}
function gup(name) {
	name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
	var regexS = "[\\?&]" + name + "=([^&#]*)";
	var regex = new RegExp(regexS);
	var results = regex.exec(window.location.href);
	if (results == null)
		return "";
	else
		return results[1];
}
function changeColor(name)

{

	var pagelink = gup(name);
	var changeState = ( function() {
		var active = null;
		return function(link) {
			if (active == link) {
				link.className = 'hmains';
				active = null;
			} else if (active) {
				active.className = 'hmains';
				(active = link).className = 'active';
			} else {
				var state = 'hmains';
				if ('hmains' == link.className) {
					state = 'active';
					active = link;
				}
				link.className = state;
			}
		};
	})();
	if (pagelink == "HOME") {
		document.getElementById("hom").className = changeState;
	}
	if (pagelink == "ABOUT_PARKINSONS") {
		document.getElementById("apa").className = changeState;
	}
	if (pagelink == "ABOUT_US") {
		document.getElementById("aus").className = changeState;
	}
	if (pagelink == "SERVICES") {
		document.getElementById("ser").className = changeState;
	}
	if (pagelink == "GALLERY") {
		document.getElementById("gal").className = changeState;
	}
	if (pagelink == "NEWS_AND_VIEWS") {
		document.getElementById("nav").className = changeState;
	}
	if (pagelink == "PUBLICATIONS") {
		document.getElementById("pub").className = changeState;
	}
	if (pagelink == "ENQUIRIES") {
		document.getElementById("enq").className = changeState;
	}
	if (pagelink == "LINKS") {
		document.getElementById("lin").className = changeState;
	}

}