function toggleLayer(whichLayer)
{
	if (document.getElementById)
	{
		// this is the way the standards work
		var style2 = document.getElementById(whichLayer).style;
		if (style2.display=="none" || style2.display=="") 
		{
			style2.display="block";
			document.getElementById(whichLayer + '_pic').src = "/ic/images/toc_minus.gif";
		}
		else 
		{
			style2.display="none";
			document.getElementById(whichLayer + '_pic').src = "/ic/images/toc_plus.gif";
		}
	}
	else if (document.all)
	{
		// this is the way old msie versions work
		var style2 = document.all[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
	else if (document.layers)
	{
		// this is the way nn4 works
		var style2 = document.layers[whichLayer].style;
		style2.display = style2.display? "":"block";
	}
	ntptEventTag('ev=toggleSubSection&evdetail=' + whichLayer);
}
function expandAll_Anatomic_Findings(NumNodes)
{
	for (var z = 1; z <= NumNodes; z++)
   	{
		var x = document.getElementById('hy_af_' + z);
		x.style.display = 'block';
		document.getElementById('hy_af_' + z + '_pic').src = "/ic/images/toc_minus.gif";
  	 }
  	 
	var x = document.getElementById('hy_expandlink1');
	x.style.display = 'none';
	var x = document.getElementById('hy_closelink1');
	x.style.display = 'block';
	ntptEventTag('ev=expandSection&evdetail=AnatomicFindings');
}
function closeAll_Anatomic_Findings(NumNodes)
{
	for (var z = 1; z <= NumNodes; z++)
   	{
		var x = document.getElementById('hy_af_' + z);
		x.style.display = 'none';
		document.getElementById('hy_af_' + z + '_pic').src = "/ic/images/toc_plus.gif";
  	 }
	var x = document.getElementById('hy_closelink1');
	x.style.display = 'none';
	var x = document.getElementById('hy_expandlink1');
	x.style.display = 'block';
	ntptEventTag('ev=closeSection&evdetail=AnatomicFindings');
}

function expandAll_Img_Tech(TechCount)
{
	for (var z = 1; z <= TechCount; z++)
   	{
		var x = document.getElementById('hy_imgtech_' + z);
		x.style.display = 'block';
		document.getElementById('hy_imgtech_' + z + '_pic').src = "/ic/images/toc_minus.gif";
  	 }
	var x = document.getElementById('hy_expandlink2');
	x.style.display = 'none';
	var x = document.getElementById('hy_closelink2');
	x.style.display = 'block';
	ntptEventTag('ev=expandSection&evdetail=ImagingFindings');
	var x = document.getElementById('hy_ddx_diagnoses_table');
	x.style.display = 'none';
	var x = document.getElementById('hy_ddx_diagnoses_table');
	x.style.display = 'block';
}

function closeAll_Img_Tech(TechCount)
{
	for (var z = 1; z <= TechCount; z++)
   	{
		var x = document.getElementById('hy_imgtech_' + z);
		x.style.display = 'none';
		document.getElementById('hy_imgtech_' + z + '_pic').src = "/ic/images/toc_plus.gif";
  	}
	var x = document.getElementById('hy_closelink2');
	x.style.display = 'none';
	var x = document.getElementById('hy_expandlink2');
	x.style.display = 'block';
	ntptEventTag('ev=closeSection&evdetail=ImagingFindings');
}

function expandAll_Modality(ModalityCount)
{
	for (var z = 1; z <= ModalityCount; z++)
   	{
		var x = document.getElementById('hy_mf_' + z);
		x.style.display = 'block';
		document.getElementById('hy_mf_' + z + '_pic').src = "/ic/images/toc_minus.gif";
	}
	var x = document.getElementById('hy_expandlink2');
	x.style.display = 'none';
	var x = document.getElementById('hy_closelink2');
	x.style.display = 'block';
}

function closeAll_Modality(ModalityCount)
{
	for (var z = 1; z <= ModalityCount; z++)
   	{
		var x = document.getElementById('hy_mf_' + z);
		x.style.display = 'none';
		document.getElementById('hy_mf_' + z + '_pic').src = "/ic/images/toc_plus.gif";
  	}
	var x = document.getElementById('hy_closelink2');
	x.style.display = 'none';
	var x = document.getElementById('hy_expandlink2');
	x.style.display = 'block';
}