// javascript for Impact Panel Navigation

var contentHeight;
var clickCount = 0;
var clickedDiv;

function impactPanelStart () {
	clickedDiv = $('#impactPanelNav div.panel:eq(0)').attr('id');
	
	contentHeight = document.getElementById('impactPanelNav').clientHeight;
	
	$('#impactPanelNav div.impactPanelHead').click(function(){
		if (this.parentNode.id != clickedDiv) {
			clickedDiv = this.parentNode.id;
			$('#impactPanelNav div.impactPanelContent').slideUp('slow', function(){
				if (clickedDiv == this.parentNode.id)
					$('#' + clickedDiv + ' .impactPanelContent').slideDown('slow');
			});
		}
	});
	contentHeight = contentHeight - ($('#impactPanelNav div.panel').length * $('div.impactPanelHead').height());
	contentHeight += 20;
	$('#impactPanelNav div.impactPanelContent').css('height', contentHeight + 'px');
	document.getElementById('impactPanelNav').style.visibility='visible';
	$('#impactPanelNav div.impactPanelContent').slideUp('slow');
	$('#impactPanelNav div.impactPanelContent:eq(0)').slideDown('slow');
}