var sTabLayersFDPC = "tablayer-fdpc-0,tablayer-fdpc-1,tablayer-fdpc-2,tablayer-fdpc-3";
var sTabsFDPC = "tab-fdpc-0,tab-fdpc-1,tab-fdpc-2,tab-fdpc-3";
var sImageNameBasesFDPC = "btn1,btn2,btn3,btn4";

pauseRotate = 0;
tabNum = 1;
tabDelay = 6000;

function rotatePause() {
	pauseRotate = 1;
}

function rotate() {
	if (!pauseRotate) {
		ShowTab(sTabLayersFDPC,sTabsFDPC,sImageNameBasesFDPC,tabNum);
		if (tabNum < 3) {
			tabNum = tabNum + 1;
		} else {
			tabNum = 0;
		}
		setTimeout("rotate()", tabDelay);
	}
}

function ShowTab(sTabLayers,sTabs,sImageNameBases,iIndex)
{	
	var aTabLayers = sTabLayers.split(",");
	var aTabs = sTabs.split(",");
	var aImageNameBases = sImageNameBases.split(",");
	var i = 0;
	
	for(i=0;i<aTabLayers.length;i++)
	{
		try {
		//turn off all tab sections
		document.getElementById(aTabLayers[i]).style.display = "none";
		//turn off all tabs themselves
		document.getElementById(aTabs[i]).src = "images/" + aImageNameBases[i] + "_off.jpg";
		} catch(e){
		//couldn't find tab or layer
		}
	}
	
	//display the correct tab section and tab image (according to the arguments passed in to this function)
	var sSectionDivId = aTabLayers[iIndex];
	var sTabImageId = aTabs[iIndex];	
	document.getElementById(sSectionDivId).style.display = "block";	
	document.getElementById(sTabImageId).src = "images/" + aImageNameBases[iIndex] + "_on.jpg";
}

function MouseOverTab(sTabs, sImageNameBases, iIndex)
{
	var aTabs = sTabs.split(",");
	var aImageNameBases = sImageNameBases.split(",")	
	var sTabId = aTabs[iIndex];
	var sTabName = aImageNameBases[iIndex];

	var sImage = document.getElementById(sTabId).src;
	sImage = sImage.substring(sImage.length-6,sImage.length-4)				
	if (sImage != "on")
	{
		document.getElementById(sTabId).src = "images/" + sTabName + "_off.jpg"; // Over Image
	}						
}

function MouseOutTab(sTabs, sImageNameBases, iIndex)
{

	var aTabs = sTabs.split(",");
	var aImageNameBases = sImageNameBases.split(",")	
	var sTabId = aTabs[iIndex];
	var sTabName = aImageNameBases[iIndex];
	
	var sImage = document.getElementById(sTabId).src;
	sImage = sImage.substring(sImage.length-6,sImage.length-4)					
	if (sImage != "on")
	{
		document.getElementById(sTabId).src = "images/" + sTabName + "_off.jpg";
	}					
}