function goPointer()
{
   document.body.style.cursor="pointer";
}

function goArrow()
{
   document.body.style.cursor="default";
}

function showSecondary()
{
   document.getElementById("primary").style.display="none";
   document.getElementById("secondary").style.display="inline";
   document.getElementById("secondary2").style.display="inline";
   document.getElementById("secondary2").src="http://www.radile.com/rdweb/ptl.html";
}

function showPrimary()
{
   document.getElementById("secondary").style.display="none";
   document.getElementById("secondary2").style.display="none";
   document.getElementById("primary").style.display="inline";
}

function showSection(section) {
	if (document.getElementById(section).style.display=="none") {
		document.getElementById(section).style.display="block";
	}
	else {
		document.getElementById(section).style.display="none";
	}
	
}

function changeArrows(checker) {
   if (document.getElementById(checker).style.display=="inline") {
		document.getElementById(checker+"up").style.display="inline";
		document.getElementById(checker).style.display="none";
	}
	else {
		document.getElementById(checker+"up").style.display="none";
		document.getElementById(checker).style.display="inline";
	}
}

function changeColor(color) {
	document.getElementById(color).src = "../../images/arrow-down2.png"; 
    document.getElementById(color+"up").src = "../../images/arrow-up2.png"; 
}

function revertColor(color) {
	document.getElementById(color).src = "../../images/arrow-down.png"; 
    document.getElementById(color+"up").src = "../../images/arrow-up.png"; 
}

function highlight(button){
   document.getElementById(button).style.display="none";
   document.getElementById(button+"2").style.display="inline";
}

function lowlight(button){
   document.getElementById(button+"2").style.display="none";
   document.getElementById(button).style.display="inline";
}

function hideVideo()
{
   parent.document.getElementById("videoFrame").src = "content/videos/video-start.php";
   parent.document.getElementById("videoFrame").style.display="none";
   parent.document.getElementById("lights-out").style.display="none";
}

function showVideo(vlocation, vnumber, length) {
	parent.document.getElementById("lights-out").style.display="inline";
    parent.document.getElementById("videoFrame").style.display="inline";
	parent.videoFrame.document.getElementById('videoLink').innerHTML=vlocation;
    parent.videoFrame.document.getElementById('navigation').innerHTML="<img id=\"previous\" class=\"image-link previous\" onmouseover=\"highlight('previous')\" onmouseout=\"lowlight('previous')\" onClick=\"goPrevious(" + vnumber + ", " + length + ");\" src=\"../../images/previous.png\" alt=\"Previous\" /><img id=\"previous2\" class=\"image-link previous\" style=\"display:none;\" onmouseover=\"highlight('previous')\" onmouseout=\"lowlight('previous')\" onClick=\"goPrevious(" + vnumber + ", " + length + ");\" src=\"../../images/previous2.png\" alt=\"Previous\" /><img id=\"next\" class=\"image-link next\" onmouseover=\"highlight('next')\" onmouseout=\"lowlight('next')\" onClick=\"goNext(" + vnumber + ", " + length + ");\" src=\"../../images/next.png\" alt=\"Next\" /><img id=\"next2\" class=\"image-link next\" style=\"display:none;\" onmouseover=\"highlight('next')\" onmouseout=\"lowlight('next')\" onClick=\"goNext(" + vnumber + ", " + length + ");\" src=\"../../images/next2.png\" alt=\"Next\" />";
}

function goPrevious(vnumber, length) {
	if(vnumber==0)
	   vnumber=length;
	if(vnumber>0)
	   vnumber=vnumber - 1;
	document.getElementById("videoLink").innerHTML=video[vnumber];
	document.getElementById('navigation').innerHTML="<img id=\"previous\" class=\"image-link previous\" onmouseover=\"highlight('previous')\" onmouseout=\"lowlight('previous')\" onClick=\"goPrevious(" + vnumber + ", " + length + ");\" src=\"../../images/previous.png\" alt=\"Previous\" /><img id=\"previous2\" class=\"image-link previous\" style=\"display:none;\" onmouseover=\"highlight('previous')\" onmouseout=\"lowlight('previous')\" onClick=\"goPrevious(" + vnumber + ", " + length + ");\" src=\"../../images/previous2.png\" alt=\"Previous\" /><img id=\"next\" class=\"image-link next\" onmouseover=\"highlight('next')\" onmouseout=\"lowlight('next')\" onClick=\"goNext(" + vnumber + ", " + length + ");\" src=\"../../images/next.png\" alt=\"Next\" /><img id=\"next2\" class=\"image-link next\" style=\"display:none;\" onmouseover=\"highlight('next')\" onmouseout=\"lowlight('next')\" onClick=\"goNext(" + vnumber + ", " + length + ");\" src=\"../../images/next2.png\" alt=\"Next\" />";
}

function goNext(vnumber, length) {
	if(vnumber<length)
	   vnumber=vnumber + 1;
	if(vnumber==length)
	   vnumber=0;
	document.getElementById("videoLink").innerHTML=video[vnumber];
	document.getElementById('navigation').innerHTML="<img id=\"previous\" class=\"image-link previous\" onmouseover=\"highlight('previous')\" onmouseout=\"lowlight('previous')\" onClick=\"goPrevious(" + vnumber + ", " + length + ");\" src=\"../../images/previous.png\" alt=\"Previous\" /><img id=\"previous2\" class=\"image-link previous\" style=\"display:none;\" onmouseover=\"highlight('previous')\" onmouseout=\"lowlight('previous')\" onClick=\"goPrevious(" + vnumber + ", " + length + ");\" src=\"../../images/previous2.png\" alt=\"Previous\" /><img id=\"next\" class=\"image-link next\" onmouseover=\"highlight('next')\" onmouseout=\"lowlight('next')\" onClick=\"goNext(" + vnumber + ", " + length + ");\" src=\"../../images/next.png\" alt=\"Next\" /><img id=\"next2\" class=\"image-link next\" style=\"display:none;\" onmouseover=\"highlight('next')\" onmouseout=\"lowlight('next')\" onClick=\"goNext(" + vnumber + ", " + length + ");\" src=\"../../images/next2.png\" alt=\"Next\" />";
}