// JavaScript Document

function getScrollXY() {
  var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }
  return [ scrOfX, scrOfY ];
}

window.onscroll = function () {
    var pl=document.getElementById("photo-large");
	var st=getScrollXY()[1];
    if(st>282)
    {
        pl.style.top=(st-282)+"px";
    }
    else
    {
        pl.style.top="0px"
    }
}


function showLarge(src)
{
    var pl=document.getElementById("photo-large");
	pl.innerHTML="<img src='"+src+"' alt='Large Photo' />";
}

function hideLarge()
{
    var pl=document.getElementById("photo-large");
	pl.innerHTML="<h3>Roll over each photo for larger image</h3>";
}