function doShowQuestions ( qs_id , qscount, qsets )
{
	//Hide the disclaimer page - always
	var disclaimerpage = $('disclaimerpage');
	disclaimerpage.hide();

	//Loop through the question-sets.  If the ID matches the ID to display then set display class and unset hide class	
	for ( qsetno=0; qsetno<=qscount; qsetno++)
	{
		var elementID = qsets[qsetno];
		var theElement = $(elementID);
		if ( qsets[qsetno] == qs_id ) { 
			curr_content_page = qsetno;
			if ( !(theElement==null) ){ theElement.show()};
			var theLinkElement = $(elementID + "_link");
			if ( !(theLinkElement==null) ){ theLinkElement.show() };
		} else {
			if ( !(theElement==null) ){ theElement.hide() };
		}
	}
	
	setValidationFields ( qs_id );
	
	$(legend_text).hide();
	$(date_instructions).hide();
	//$(no_date_instructions).show();
	$(action_assess).hide();
	$(action_previous).hide();
	$(action_next).hide();
	$(action_calculate).hide();
	
	if ( single_use != '' && ( curr_content_page == single_use ) )
	{
		if ( qs_id != 'qs_Results' && qs_id != 'qs_Welcome' )
		{ 
			$(action_reset).show();
			$(action_calculate).show(); 
			$(legend_text).show()
		}
	}
	else
	{
		if ( curr_content_page == 0 )
		{
			$('action_assess').show();
			$('action_reset').hide();
		}
		
		if ( curr_content_page > 0 )
		{
			$(action_next).show();
			$(action_reset).show();
			$(legend_text).show()
			$(action_previous).show();
		}
		
		if ( curr_content_page > 1 ) { $(action_previous).show(); }
		
		if ( curr_content_page == qscount - 1 )
		{
			$(action_next).hide();
			$(action_calculate).show();
		}
		if ( curr_content_page == qscount )
		{
			$(action_next).hide();	
			$(action_previous).hide();
			$(legend_text).hide();
		}
	}
	
	for ( date_qsetno=0; date_qsetno<=qset_date_fields.length; date_qsetno++)	
	{
		if ( qs_id == qset_date_fields[date_qsetno] )
		{
			//$(no_date_instructions).hide();
			$(date_instructions).show();
		}
	}
}


function doAddDateRange( field_id )
{
	var from_field_name = field_id + '_AddFrom';
	var to_field_name = field_id + '_AddTo';
	var from_date = $F( from_field_name );
	var to_date = $F( to_field_name );
	var url = 'agValidateDateRange?OpenAgent' ;
	var pars = 'start=' + from_date + '&field=' + field_id + '&end=' + to_date + '&current=' + $F( field_id )+ '&rndm=' + Math.random();
//	prompt ( 'url' , url + '&' + pars );
	var date_validation_ajax = new Ajax.Request( 
			url, 
			{
				method: 'get', 
				parameters: pars, 
				onComplete: dateValidationHandler
			}
	)
}


function dateValidationHandler( validation_results )
{
	var validationXML = validation_results.responseXML;
	var validation_info = validationXML.getElementsByTagName("ValidationResults" );
	var validation_node = validation_info[0].firstChild;
	var sFailReasons = '';
	do {
		if (( validation_node.nodeType!=3)&&(validation_node.nodeType!=8))	
		{
			if (window.ActiveXObject) { var nodevalue = validation_node.text ;	} else { var nodevalue = validation_node.textContent;}
//			alert ( 'XML value ' + validation_node.nodeName + ' = ' + nodevalue );
			switch ( validation_node.nodeName )
			{
				case "FieldID" : var field_id = nodevalue; break;
				case "ValidationStatus" : var validation_status = nodevalue; break;
				case "RangeStartDate" : var return_from_date = nodevalue; break;
				case "RangeEndDate" : var return_to_date = nodevalue ; break;
				case "Fail" : sFailReasons = sFailReasons + '\n  * ' + nodevalue; break;
			}
		}
		validation_node = validation_node.nextSibling;
	} while ( validation_node != null );
//	alert ( 'Completed XML Parsing' );
	if ( validation_status != 'Valid' ) {
		alert ( 'Invalid Dates.  The selected Start and End dates are invalid for the following reasons:' + sFailReasons );
	} else {
		var date_range = return_from_date + '-' + return_to_date;
		if ( $F( field_id ) == '' ){
			$( field_id ).value = date_range;
		} else {
			$( field_id ).value = $F( field_id ) + ":" + date_range;
		}
		doRebuildDisplayDateRange ( field_id );
		$( field_id + '_AddFrom' ).value = '';
		$( field_id + '_AddTo' ).value = '';
	}
}


function doRebuildDisplayDateRange ( field_id )
{
	disp_html = '';
	if ( $F( field_id ).indexOf ( ':' ) > 0  ){
		var date_ranges = new Array();
		var date_ranges = $F( field_id ).split( ':' );
		for ( date_range_count=0; date_range_count<date_ranges.length; date_range_count++)	{
			var disp_html = disp_html + date_ranges[date_range_count] + "<img src='trashcan.JPG' onclick='doRemoveDateRange( \"" + field_id + "\", \""+ date_range_count + "\" );' /><br>";
		}
	} else if ( $F( field_id ) != ''){
		disp_html = $F( field_id ) + "<img src='trashcan.JPG' onclick='doRemoveDateRange( \"" + field_id + "\", \"0\" );' />";
	}
	$( field_id + '_disp').innerHTML = disp_html;
	return;
}


function doRemoveDateRange ( field_id , range_no ) 
{
	var new_value = '';
	if ( $F( field_id ).indexOf ( ':' ) > 0  ){
		var date_ranges = new Array();
		var date_ranges = $F( field_id ).split( ':' );
		for ( date_range_count=0; date_range_count<date_ranges.length; date_range_count++)	{
			if ( date_range_count != range_no ){
				if ( new_value == '' ) {
					new_value = date_ranges[date_range_count];
				} else {
					new_value = new_value + ':' + date_ranges[date_range_count];
				}
			}
		}
	}
	$( field_id ).value = new_value;
	doRebuildDisplayDateRange ( field_id );
}



function doShowDisclaimerPage()
{
	var disclaimerpage = $('disclaimerpage');
	var welcome = $('qs_Welcome');
	var prevbutton = $('action_previous');
	var startbutton = $('action_assess');
	var idResetButton = $('action_reset');
	var nextbutton = $('action_next');
	var navlinks = $('navigator_links');
	
	var navHTML = "";
	
	welcome.hide();
	startbutton.hide();

	disclaimerpage.show();
	nextbutton.show();
	prevbutton.show();
	idResetButton.show();
	$(action_print).hide();
		
	//navHTML = navlinks.innerHTML;
//	navHTML = navHTML + "<li>Disclaimer</li>";
	//navlinks.innerHTML = navHTML;
}


function doNextPage()
{
	var disclaimerpage = $('disclaimerpage');
	var prevbutton = $('action_previous');

	$(action_print).hide();

	if (disclaimerpage.style.display != "none")
	{
		disclaimerpage.hide();
		doStartQuestions();
		prevbutton.show();
		return;
	}


	if ( curr_content_page == single_use )
	{

		doTestRules ( qsets[curr_content_page] , qsets[0] );
	}
	else
	{
		doTestRules ( qsets[curr_content_page] , qsets[curr_content_page+1] )
	}
}


function doPrevPage()
{
	//Get stuff required
	var disclaimerpage = $('disclaimerpage');
	var welcome = $('qs_Welcome');
	var prevbutton = $('action_previous');
	var startbutton = $('action_assess');
	var idResetButton = $('action_reset');
	var nextbutton = $('action_next');
	var firstqpage = $(qsets[1]);
	var completeqs = $('legend_text');
			

	//If we are on the Disclaimer page
	if (disclaimerpage.style.display != "none")
	{
		//This runs most of what is in the doReset fucntion
		for ( qsetno=0; qsetno<=qscount; qsetno++)
		{
			var elementID = qsets[qsetno];
			var theLinkElement = $(elementID + "_link");
			if ( !(theLinkElement==null) ){ theLinkElement.hide() };
		}
	
		document.forms[0].reset();
		for ( date_range_no=0; date_range_no<=date_ranges.length; date_range_no++)
		{
			var elementID = date_ranges[date_range_no];
			var theDisplayElement = $(elementID + "_disp");
			if ( !(theDisplayElement==null) ){ theDisplayElement.innerHTML = '&nbsp;' };
		}	
	
		single_use = '';
		doShowHideQuestions();
		doShowQuestions ( 'qs_Welcome', qscount , qsets );
		var url = 'agUpdateUsage?OpenAgent' ;
		var pars = 'unid=' + update_id + '&type=reset&rndm=' + Math.random();
		var update_usage = new Ajax.Request(url, {method: 'get', parameters: pars});

		disclaimerpage.hide();
		startbutton.show();
		$(action_print).show();
		return;
	}
	
	if (curr_content_page == 1)
	{
		curr_content_page = curr_content_page - 1;
		disclaimerpage.show();
		prevbutton.show();
		firstqpage.hide();
		idResetButton.show();
		completeqs.hide();
		return;
	}

	if ( single_use != '' )
	{
//		doTestRules ( qsets[curr_content_page] , qsets[0] );
		doShowQuestions ( qsets[0] , qscount , qsets  )
	}
	else
	{
//		doTestRules ( qsets[curr_content_page] , qsets[curr_content_page - 1] )
		doShowQuestions ( qsets[curr_content_page - 1] , qscount , qsets  )
	}
	
	idResetButton.show();
	prevbutton.show();
}


function updateResultLinks ()
{
	var newlinks = '<ul>\n';
	for ( result_link=0; result_link<=this.result_link_count; result_link++){
		if ( ( single_use != '' && result_link + 1 == single_use ) || single_use == '' ){
			if ( this.result_links[result_link] != '' ) {
				var newlinks = newlinks + '<li>The ' + this.result_links[result_link] + ' ';

				if ( qset_statuses[result_link] != 'Eligible' ) {
					var newlinks = newlinks + '<span class="not_met" ><strong>HAS NOT</strong> been met</span></li>\n';
				} else {
					var newlinks = newlinks + '<span class="met"><strong>HAS</strong> been met</span></li>\n';
				}
			}
		}
	}
	var newlinks = newlinks + '</ul>';
	var result_links = $( qs_Results_links );
	if ( !( result_links == null ) ){
		result_links.innerHTML = newlinks;
	};
}


function doCalculateEligibility(next_qset)
{
	var rule_action = doTestRules ( qsets[curr_content_page] , next_qset );
	var url = 'agUpdateUsage?OpenAgent' ;
	var pars = 'unid=' + update_id + '&type=calc&rndm=' + Math.random();
	var update_usage = new Ajax.Request(url, {method: 'get', parameters: pars})
	
	$(action_print).show();
}


function doReset()
{
	var startbutton = $('action_assess');
	var disclaimerpage = $('disclaimerpage');

	// Prompt user to confirm
	var answer = confirm ("Restart the Citizenship Online Calculation Tool?");
	if (!answer) return;


	for ( qsetno=0; qsetno<=qscount; qsetno++)
	{
		var elementID = qsets[qsetno];
		var theLinkElement = $(elementID + "_link");
		if ( !(theLinkElement==null) ){ theLinkElement.hide() };
	}
	
	document.forms[0].reset();
	for ( date_range_no=0; date_range_no<=date_ranges.length; date_range_no++)
	{
		var elementID = date_ranges[date_range_no];
		var theDisplayElement = $(elementID + "_disp");
		if ( !(theDisplayElement==null) ){ theDisplayElement.innerHTML = '&nbsp;' };
	}	
	
	single_use = '';
	doShowHideQuestions();
	doShowQuestions ( 'qs_Welcome', qscount , qsets );
	var url = 'agUpdateUsage?OpenAgent' ;
	var pars = 'unid=' + update_id + '&type=reset&rndm=' + Math.random();
	var update_usage = new Ajax.Request(url, {method: 'get', parameters: pars});
	
	//Get screen back to initial setup
	startbutton.show();
	disclaimerpage.hide();
	
	$(action_print).show();
}


function doButtonAction ( curr_rb )
{	
	doShowHideQuestions();	
}


function doShowAccessibilityInfo( caller_name )
{
	if (showAccessibility)
	{
		showAccessibility = false;
		Element.hide ( 'accessibilityinfo');
		return
	}
	
	showAccessibility = true;
	leftpos = 150;;
	toppos = 150;
	Element.setStyle('accessibilityinfo', {position: 'absolute', top: toppos+"px", left: leftpos+"px"} );
	Element.show ( 'accessibilityinfo' );
}


function doShowLinksInfo(caller_name)
{
	if (showLinks)
	{
		showLinks = false;
		Element.hide('linksinfo');
	}
	else
	{
		showLinks = true;
		leftpos = 150;
		toppos =150;

		Element.setStyle('linksinfo', {position: 'absolute', top: toppos+"px", left: leftpos+"px"});
		Element.show('linksinfo');
	}
}


function doRecordQuestionSetAnswers(qset)
{
	var url = 'agUpdateUsage?OpenAgent' ;
	var pars = 'unid=' + update_id + '&type=ques&qset=' + qset;
	var q_no = 1;
	var tmp_question = $( qset + "~" + q_no );

	while( tmp_question )	{
			if ( $F( tmp_question.id ) ) { var q_value = $F ( tmp_question.id ) } else { var q_value = $RF ( tmp_question.id ) }
			if ( q_value ) { pars=pars + '&' + q_no + '=' + q_value };
			q_no++;
			tmp_question = $( qset + "~" + q_no )
	}
	pars = pars + '&rndm=' + Math.random();
	var update_usage = new Ajax.Request( 
			url, 
			{
				method: 'get', 
				parameters: pars
			}
	)
}

function doAjaxAgentTest ( qset , next_qset , url , parameters , action )
{
	var url = url + '?OpenAgent';
	var parlist = new Array();
	var par_list = parameters.split('||' );
	var pars = 'unid=' + update_id
	for ( par_count=0; par_count<=par_list.length; par_count++)
	{
		if ( $RF ( par_list[par_count] + '_yes' ) ){
			par_val = $RF ( par_list[par_count] + '_yes' );
		} else if ( $RF ( par_list[par_count] + '_no' ) ){
			par_val = $RF ( par_list[par_count] + '_no' );
		} else if ( $( par_list[par_count] ) ) {
			par_val = $F( par_list[par_count] ) ;
		} else{
			par_val = 'null';
		};
		pars = pars + '&' + par_list[par_count] + '=' + par_val;
	}
	pars = pars + '&qset=' + qset + '&next_qset=' + next_qset + '&action=' + action + '&rndm=' + Math.random();

//Comment this back in to see full parameter list
//	prompt ( 'Initiating AJAX call ' , url + '&'  + pars );

	var custom_rule_test = new Ajax.Request(url, {method: 'get', parameters: pars, onComplete: AjaxAgentTestResponseHandler})
}


function AjaxAgentTestResponseHandler ( AgentTestResults )
{
	var responseXML = AgentTestResults.responseXML;
	var resultsInfo = responseXML.getElementsByTagName("TestResults" );
	var resultsNode = resultsInfo[0].firstChild;
	
	do
	{
		if (( resultsNode.nodeType!=3)&&(resultsNode.nodeType!=8))
		{
			if (window.ActiveXObject) { var nodevalue = resultsNode.text ;	} else { var nodevalue = resultsNode.textContent;}

			if ( resultsNode.nodeName == 'action' ) {
				var action = nodevalue;
				//bdo

			} else if ( resultsNode.nodeName == 'qset' ) {
				var qset = nodevalue;
			}else if ( resultsNode.nodeName == 'next_qset' ) {
				var next_qset = nodevalue;
			}
		}
		resultsNode = resultsNode.nextSibling;
	} while ( resultsNode != null );

	if ( action != '' ) { doRulesAction ( qset , next_qset , action ) }
}

function doRulesAction ( question_set , next_question_set , action ) 
{
	if (action == 'Redirect')
	{
		$( qsets[curr_content_page] ).hide();
		
		var result_links = $( qs_Results_links );
		
		if ( !( result_links == null ) )
		{
			newlinks = $F( question_set + '_Results' );
			result_links.innerHTML = newlinks;
			$( 'qs_Results' ).show();
			$(action_next).hide();
			$(action_previous).hide();
			$(legend_text).hide();
			
			//Hide the Print link  temporarily - Colm Finn June 5 2008
			//Resurrect the link when bug with printed result for "Already a citizen" is fixed.
			//alert("Need to hide Print link now...");
		}
		
		var url = 'agUpdateUsage?OpenAgent' ;
		var pars = 'unid=' + update_id + '&type=calc&redirect=' + question_set + '&rndm=' + Math.random();
		var update_usage = new Ajax.Request(url, {method: 'get', parameters: pars})
	}
	else
	{
		for ( result_link=0; result_link<=this.result_link_count; result_link++)
		{
			var tmp_link = this.result_categories[result_link];
			if (  tmp_link == question_set )
			{

				if ( action == 'Set>not' )
				{
					this.qset_statuses [result_link] = 'Not Eligible';
				}
				else if ( action == 'Eligible' )
				{
					this.qset_statuses [result_link] = 'Eligible';
				}
			}
		}

		updateResultLinks();
		doShowQuestions ( next_question_set , qscount, qsets )
	}
}


function doSetFromDate ( from_date_id , set_value )
{
	$( from_date_id ).value = set_value;
}


function doPrint ( docid  )
{
	doRecordQuestionSetAnswers ();

	if ( single_use != '' )
	{
		var print_url = 'PrintForm?OpenForm&docid=' + docid + '&single=' + qsets[ single_use ] + '&statuses=' +  qset_statuses;
	}
	else
	{
		var print_url = 'PrintForm?OpenForm&docid=' + docid + '&single=&statuses=' +  qset_statuses;	
	}
	
	var arg_list = "menubar=1,location=1,toolbar=1,scrollbars=1,resizable=1,width=740,height=550"
	window.open ( print_url , "PrintWindow" , arg_list );
}