function showScreenshot(src)
{
document.getElementById("screenshotlayer").style.visibility="visible";
}

function showLicenceLayer(evt, visible)
{
	if(visible)
	{
		document.getElementById("licencelayer").style.visibility="visible";
	}
	else
	{
		document.getElementById("licencelayer").style.visibility="hidden";
	}
}

function showPhasemodelLayer(evt, visible)
{
	
	if(visible)
	{
		document.getElementById("phasemodellayer").style.visibility="visible";
	}
	else
	{
		document.getElementById("phasemodellayer").style.visibility="hidden";
	}
}


function showReferenceImageLayer(evt, visible, imgPath, headline)
{
	

	if(visible)
	{
		document.getElementById("refHeadline").removeChild(document.getElementById("refHeadline").firstChild);
		document.getElementById("refHeadline").appendChild(document.createTextNode(headline));
		document.getElementById("refImgLayer").style.visibility="visible";
	}
	else
	{
		document.getElementById("refImgLayer").style.visibility="hidden";
	}
}

function showReferenceImageLayerOld(evt, visible, imgPath, headline)
{
	

	if(visible)
	{
		document.getElementById("refImage").src = ""; 
		document.getElementById("refImage").src = imgPath;
		document.getElementById("refHeadline").removeChild(document.getElementById("refHeadline").firstChild);
		document.getElementById("refHeadline").appendChild(document.createTextNode(headline));
		document.getElementById("refImgLayer").style.visibility="visible";
	}
	else
	{
		document.getElementById("refImgLayer").style.visibility="hidden";
	}
}