function setActiveStyleSheet(title) {
	var i, a, main;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) a.disabled = false;
		}
	}
}
function getActiveStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
	}
	return null;
}
function getPreferredStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1
			&& a.getAttribute("rel").indexOf("alt") == -1
			&& a.getAttribute("title")
		) return a.getAttribute("title");
	}
	return null;
}
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
window.onload = function(e) {
	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
}
window.onunload = function(e) {
	var title = getActiveStyleSheet();
	createCookie("style", title, 365);
}
var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);


/* prepopulate.js */
// edited to search only for input with the id="zoom_query"

/* addEvent handler for IE and other browsers */
function addEvent(elm, evType, fn, useCapture)
// addEvent and removeEvent
// cross-browser event handling for IE5+,  NS6 and Mozilla
// By Scott Andrew
{
	if (elm.addEventListener){
		elm.addEventListener(evType, fn, useCapture);
		return true;
	} else if (elm.attachEvent){
		var r = elm.attachEvent("on"+evType, fn);
		return r;
	}
}

/* pre-fill the inputs and textareas with their title attribute value, and add relevant onfocus/onblur handlers */
function prepopulate() {
	/* get all inputs */
	elements = document.getElementsByTagName('input');
	/* loop through the array of elements */
	n_elements = elements.length;
	for (i = 0; i < n_elements; i++) {
		//if (elements[i].type=='text') {
		if (elements[i].id=='zoom_query') {
			elements[i].setAttribute('value',elements[i].getAttribute('title'));
			addEvent(elements[i],'focus',input_focus);
			addEvent(elements[i],'blur',input_blur);
		}
	}
	/* get all textareas */
	elements = document.getElementsByTagName('textarea');
	/* loop through the array of elements */
	n_elements = elements.length;
	for (i = 0; i < n_elements; i++) {
		elements[i].value=elements[i].getAttribute('title');
		addEvent(elements[i],'focus',input_focus);
		addEvent(elements[i],'blur',input_blur);
	}
}

function input_focus(e) {
	// This is an event handler; get the clicked on element,
	// in a cross-browser fashion
	if (window.event) {
		target = window.event.srcElement;
	} else if (e) {
		target = e.target;
	} else return;

	// Make sure that the target is an element, not a text node
	// within an element
	if (target.nodeType == 3) {
		target = target.parentNode;
	}

	// Paranoia; check this is an input tag
	if ((target.nodeName.toLowerCase() != 'input')&&(target.nodeName.toLowerCase() != 'textarea')) return false; 
	
	if (target.value==target.getAttribute('title')) {
		target.value='';
	}
	return true;
}

function input_blur(e) {
	// This is an event handler; get the clicked on element,
	// in a cross-browser fashion
	if (window.event) {
		target = window.event.srcElement;
	} else if (e) {
		target = e.target;
	} else return;

	// Make sure that the target is an element, not a text node
	// within an element
	if (target.nodeType == 3) {
		target = target.parentNode;
	}

	// Paranoia; check this is an input tag
	if ((target.nodeName.toLowerCase() != 'input')&&(target.nodeName.toLowerCase() != 'textarea')) return false; 

	if (target.value=='') {
		target.value=target.getAttribute('title');
	}

	return true;
}

/* add functions to the page's onload handler */
addEvent (window,'load',prepopulate)