function checkToggle(radioName, toggleList) {

	// match on variablecode + ',' to prevent D4.V2 being a match for D4.V22,D4.V23
	var checkList = toggleList + ',';
	var radios = document.form[radioName];
	for (var n = 0; n < radios.length; n++)
		if (radios[n].checked)
			var curradio = radios[n].value;

	for (var n = 1; n < 20; n++) {
		var select = document.form['B_' + n];
		if (select == null)
			break;
		var index = select.selectedIndex;
		var code = select.options[index].value;
	
		// match on variablecode + ',' to prevent D4.V2 being a match for D4.V22,D4.V23
		var testcode = code + ',';
		if (checkList.indexOf(testcode) > -1) {
			if (curradio != code) {
				toggleRadio(radioName, code);
				toggleDisplay(code, toggleList);
			}
			break;
		}
	}
}

function replaceClass(id, oldclass, newclass) {

	var elem = (document.getElementById) ? document.getElementById(id) :
				((document.all) ? document.all(id) : null);
	if (elem == null)
		return;

	if (elem.className == null || elem.className == '')
		elem.className = newclass;
	else if (elem.className.indexOf(newclass) > -1)
		return;
	else if (elem.className.indexOf(oldclass) > -1)
		elem.className = elem.className.replace(oldclass, newclass);
	else
		elem.className += " " + newclass;
}

var sendTimeoutId = ' ';
var tabsend = false;
var mapchart = '';

function sendCancel() {
	sendMsgClear();
	if (window.stop)
		window.stop();
	else
		document.execCommand('Stop');
}

function sendMsgClear() {

	var elem = (document.getElementById) ? document.getElementById('send-msg') :
				((document.all) ? document.all('send-msg') : null);
	if (elem != null)
		elem.className = 'displayoff';

	elem = (document.getElementById) ? document.getElementById('export-text') :
				((document.all) ? document.all('export-text') : null);
	if (elem != null)
		elem.className = 'displayoff';

	if (!sendTimeoutId == ' ') {
		clearTimeout(sendTimeoutId);
		sendTimeoutId = ' ';
	}

}

function finishLoad() {
	formHasLoaded = true;
}

function sendMsgInit() {
	document.write(
	'<center><table id="send-msg" class="displayoff" cellspacing="0" cellpadding="0" width="550px">' +
	'<tr><td id="send-text">Processing Request, please wait for results...</td></tr>' +
	'<tr><td><div id="progress-bar" style="width:10px">&nbsp;</div></td></tr>' +
	'<tr><td align="center"><input type="button" value="Cancel Request" onclick="sendCancel()" class="button1" style="margin:10px"></td></tr>' +
	'<tr class="displayoff" id="export-text"><td>Click "Cancel Request" to clear this message when download is complete</td></tr>' +
	'</table></center>');
}

/*
	Call with action == 'reset' to reset the progress bar, otherwise the progress bar
	is incremented by 10px.
*/
function sendMsgProgressBar(action) {

	var elem = (document.getElementById) ? document.getElementById('progress-bar') :
				((document.all) ? document.all('progress-bar') : null);
	if (elem == null)
		return;

	var style = elem.getAttribute('style');
	if (style.width) {
		var width = elem.style.width;
		var len = width.substring(0, width.length - 2);
		len = parseInt(len) + 10;
		if (len > 300 || action == 'reset')
			len = 10;
		elem.style.width = len;
	}
	else {
		var attrs = style.split(';');
		var newstyle = '';
		for (var n = 0; n < attrs.length; n++) {
			var attr = attrs[n];
			if (attr == '')
				continue;
			if (attr.indexOf('width') == -1 && attr.indexOf('WIDTH') == -1) {
				newstyle += attr + ';';
				continue;
			}
		
			var index = attr.indexOf(':');
			var len = attr.substring(index + 2, attr.length - 2);
			var num = parseInt(len) + 10;
			if (num > 300 || action == 'reset')
				num = 10;
			len = num + '';
			newstyle += 'width:' + len + 'px;';
		}

		elem.setAttribute('style', newstyle);
	}

/*	Old method with dots...
	var node = sendMsgTextNode();
	if (node == null)
		return;

	var str = node.nodeValue;
	var len = str.length;
	if (str.charAt(len - 1) == ' ' || str.charAt(len - 1) == '\n')
		str = str.substring(0, len - 1);
	str = str + '.';
	node.nodeValue = str;
	sendTimeoutId = setTimeout('sendMsgUpdate()', 2000);
*/
}

var formHasLoaded = false;

function sendMsgSet(flag) {

	if ( !formHasLoaded ) {
		alert('The page has not finished loading. Please wait a moment and try again.');
		return false;
	}

	/* Tab or finder control clicked, do nothing, set by sendTab() */
	if (tabsend) {
		tabsend = false;
		return true;
	}

	var stdmsg = 'Processing Request, please wait for results...';
	var mapmsg = 'Processing Map Request, please wait for results...';
	var chartmsg = 'Processing Chart Request, please wait for results...';
	var stillmsg = 'Still Processing, Click "Cancel Request" to stop...';
	var textnode = sendMsgTextNode();

	/* Another Send already in process */
	if (sendTimeoutId != ' ') {
		if (textnode == null)
			return;
		textnode.nodeValue = stillmsg;
		window.scrollTo(0,0);
		return false;
	}
	
	/* hide error message */
	var errormsg = document.getElementById('error-table');
	if (errormsg == null)
		errormsg = document.getElementById('error-messages');
	if (errormsg != null )
		errormsg.className = 'displayoff';

	/* Start new data request Send */
	var elem1 = (document.getElementById) ? document.getElementById('send-msg') :
				((document.all) ? document.all('send-msg') : null);
	if (elem1 == null)
		return true;

	/* Unhide text related to export if doing an export */
	var elem2 = (document.getElementById) ? document.getElementById('export-option') :
				((document.all) ? document.all('export-option') : null);
	if (elem2 != null && elem2.checked) {
		var elem3 = (document.getElementById) ? document.getElementById('export-text') :
				((document.all) ? document.all('export-text') : null);
		elem3.className = '';
	}

	sendMsgProgressBar('reset');
	if (textnode != null) {
		if (mapchart != '') {
			if (mapchart == 'map')
				textnode.nodeValue = mapmsg;
			else if (mapchart == 'chart')
				textnode.nodeValue = chartmsg;
			mapchart = '';
		}
		else if (flag == null)
			textnode.nodeValue = stdmsg;
		else if (flag == 'map')
			textnode.nodeValue = mapmsg;
		else if (flag == 'chart')
			textnode.nodeValue = chartmsg;
	}
	elem1.className = '';

	window.scrollTo(0,0);
	sendTimeoutId = setTimeout('sendMsgUpdate()', 1000);

	return true;
}

function sendMsgTextNode() {
	var elem = (document.getElementById) ? document.getElementById('send-text') :
				((document.all) ? document.all('send-text') : null);
	if (elem == null)
		return null;
	return elem.childNodes[0];
}

function sendMsgUpdate() {

	sendTimeoutId = setTimeout('sendMsgUpdate()', 1000);
	sendMsgProgressBar('bump');
}

/*
	Called by the onclick handler of tabs so the sendMsgSet function knows a tab was clicked
*/
function sendTab() {
	tabsend = true;
}

function sendTab2(mapchartStr) {
	mapchart = mapchartStr;
}

function setfocus(win_name) {

	var win = window.open('', win_name);

	var width = (window.screen.availWidth * .9);
	var height = (window.screen.availHeight * .9);
	win.resizeTo(width, height);

	var x_pos = (window.screen.availWidth/2) - (width / 2);
	var y_pos = (window.screen.availHeight/2) - (height / 2);
	win.moveTo(x_pos, y_pos);

	win.focus();
}

function toggleBys(byselect, on, offList) {

	var offarr = offList.split(',');
	var found = false;
	var options = byselect.options;
	for (var n = 0; n < options.length; n++) {
		var option = options[n];
		if (!option.selected)
			continue;
		var value = option.value;
		for (var m = 0; m < offarr.length; m++) {
			if (value == offarr[m]) {
				found = true;
				option.selected = false;
			}
		}
	}

	if (!found)
		return;

	for (var n = 0; n < options.length; n++) {
		var option = options[n];
		var value = option.value;
		if (on == value) {
			option.selected = true;
		}
	}
}

function toggleDisplay(on, offList) {

	toggleDisplayLocal(on, offList)
	replaceClass(on, 'displayoff', 'displayon');

	offList = offList.replace(on + ',', '');
	offList = offList.replace(',' + on, '');
	var offarr = offList.split(',');
	for (var n = 0; n < offarr.length; n++)
		replaceClass(offarr[n], 'displayon', 'displayoff');
}

// Placeholder. Will be overridden by datasets in the xsl request file as needed.
function toggleDisplayLocal(on, offList) {
}

function toggleOptions(on, offList) {

	toggleDisplay(on, offList);
	// loop through byvariables and toggle based on settings
	// look until no more found
	for (var n = 1; n < 11; n++) {
		var byselect = document.form["B_" + n];
		if (byselect == undefined)
			break;
		toggleBys(byselect, on, offList);
	}
	loadFinder(on);
}

function toggleRadio(name, value) {

	var radios = document.form[name];
	for (var n = 0; n < radios.length; n++)
		radios[n].checked = (radios[n].value == value) ? true : false;
}

function togglePageBreaks(checked, tagname) {

	var classname = checked ? "pagebreak" : "pagebreakoff";
	var divs = document.getElementsByTagName(tagname);
	for (var n = 0; n < divs.length; n++) {
		var cl = divs[n].className;
		if (cl.indexOf("pagebreak") == 0)
			divs[n].className = classname;
	}
}


/*
	function stopRKey captures all keystrokes on the page and eats the enter keystroke.
	however, tabbing to a button and hitting enter still works.
	this keeps the form from getting submitted, or a navigation tab from being activated when
	user hits the enter key in a single line edit box.
*/

function stopRKey(evt) {
  var evt = (evt) ? evt : ((event) ? event : null);
  var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
  if ((evt.keyCode == 13) && (node.type=="text"))  {return false;}
} 

document.onkeypress = stopRKey;