/* Function makes text light up or go out when moused over or off */
function BtnOn(State, Btn)
{
      Btn.className = (State)? "HeaderClicked" : "HeaderNormal";
}


function ShowDiv(DivName)
{
   var DivArr = document.getElementsByTagName("Div");
   for(i=1;i<DivArr.length;i++)
   {
      CurrDivName = DivArr[i].id ;
      if(CurrDivName == DivName)
         DivArr[i].style.display = "Block";
      else
         DivArr[i].style.display = "None";
   }
}
var currentPic = 0;
var currentDiv = ""
function ShowDetails(PicId)
{
	var Details = document.getElementById("DetailsPicDiv");
	var NewPic = document.getElementById(PicId);
	var Details = document.getElementById("DetailsPicDiv");
	
	if(Details && NewPic)
	{
		var curr = document.getElementById(currentDiv+"TechDetails");
		if(curr)
		{
			curr.style.display = "none";
		}
		NewPic.className = "ThumbnailSelected";
		if(currentPic != 0)
		{
			var curr = document.getElementById(currentPic);
			if(curr)
				curr.className = "Thumbnail";
		}
		Details.innerHTML = "<img src='../Graphics/Details/"+PicId+"Lrg.jpg' border='0'>"
		currentPic = PicId;
		var Details = document.getElementById(PicId+"TechDetails");
		if(Details)
		{
			Details.style.display = "block";
			currentDiv = PicId;
		}
	}
}
var scrollSpeed = 1
function ScrollDown()
{
	var OuterBtm = document.getElementById("ScrollOuter").offsetHeight;
	var Inner = document.getElementById("ScrollInner");
	if(Inner)
	{	
		innerTop = parseInt(Inner.offsetTop);
		var newTop = innerTop - scrollSpeed;
		if(innerTop+Inner.offsetHeight > OuterBtm)
			Inner.style.top = newTop;
		else
			Inner.style.top = 0;
	}
	window.setTimeout("ScrollDown()",30)
}

function ScrollUp()
{
	var outerTop = document.getElementById("ScrollOuter").offsetTop;
	var Inner = document.getElementById("ScrollInner");
	if(Inner)
	{	
		innerTop = parseInt(Inner.offsetTop);
		var newTop = innerTop + 10;
		if(innerTop < 0)
			Inner.style.top = newTop;
	}
}