// $Id: hompageFeatureControl.js 668 2011-05-19 08:23:30Z winterjp $

var $j = jQuery.noConflict();

stopRotate = false;
processingFeatureChange = false;

function featureNext() {

	if (!processingFeatureChange){
		
		processingFeatureChange = true;
	
		$j('#features ul li.last a').unbind('click',featureNext);


		//Only rotate headers if there's more than one:
		if ($jfeaturesHeader.length > 1){
			$jcurrentHeader = $jfeaturesHeader.eq(0);
			$jnextHeader = $jcurrentHeader.next();	
			$jcurrentHeader.hide();
			
			$jnextHeader.fadeIn('slow', function(){
				$jcurrentHeader.insertAfter($jfeaturesHeader.eq($jfeaturesHeader.length-1));
				$jfeaturesHeader = $j('#features h2');
			})
		}
		
		if ($jfeatures.length >1){
			$jcurrent = $jfeatures.eq(0);
			$jnext = $jcurrent.next();
			
			$jnext.fadeIn('slow',function(){
				$jcurrent.insertAfter($jfeatures.eq($jfeatures.length-1));
				$jcurrent.hide();
				$jfeatures = $j('#features span.sys_featureImage');
				$j('#features ul li.last a').bind('click',featureNext);
				processingFeatureChange = false;
			});
		}

	}
	return false;
}

function featurePrev() {

	if (!processingFeatureChange){
	
		processingFeatureChange = true;
		
		$j('#features ul li.first a').unbind('click',featurePrev);
		
		//Only rotate headers if there's more than one:
		if ($jfeaturesHeader.length > 1){
			$jcurrentHeader = $jfeaturesHeader.eq(0);
			$jnextHeader = $jfeaturesHeader.eq($jfeaturesHeader.length-1);	
			$jnextHeader.insertBefore($jcurrentHeader);
			$jcurrentHeader.hide();
			$jnextHeader.fadeIn('slow', function(){
				
				$jfeaturesHeader = $j('#features h2');
			})
		}
		
		if ($jfeatures.length > 1){
		
		    $jcurrent = $jfeatures.eq(0);
			$jnext = $jfeatures.eq($jfeatures.length-1);
			$jnext.fadeIn('slow',function(){
				$jnext.insertBefore($jcurrent);
				$jcurrent.hide();
				$jfeatures = $j('#features span.sys_featureImage');
				$j('#features ul li.first a').bind('click',featurePrev);
				processingFeatureChange = false;

			});
			
		}

	}

	return false;
}

$j(document).ready(function(){

	$jfeaturesDiv = $j('#features');
	
	//Add navigation buttons with jQuery as they're no use without javascript
	//but only if there's more than one image
	if ($j("#features>span").length > 1){
		$j('#features').append(
			'<ul> 			<li class="sys_first"><a href="javascript:void(0)">Left</a><li> 			<li class="sys_last"><a 				href="javascript:void(0)">Right</a></li> 		</ul>');

		//Setup feature rotation
		$jfeaturesDiv.find('ul li.sys_last a').bind('click',featureNext);
		$jfeaturesDiv.find('ul li.sys_first a').bind('click',featurePrev);
		$jfeaturesDiv.mouseenter(function(){ //stop rotating images when mouse over feature area
			stopRotate=true;
		});
		$jfeaturesDiv.mouseleave(function(){
			stopRotate=false;
		});
		$jfeatures = $j('#features span.sys_featureImage');
		$jfeaturesHeader = $j('#features h2');
		
		//Setup the timer for feature rotation
		setTimeout('rotateFeature()', 8000);
	}
	

});

function rotateFeature(){
	if(!stopRotate)
		featureNext();
	setTimeout('rotateFeature()',8000);
}