var lastoff;
var strPos;
var gsBlock = 'block';
var gsNone = 'none';

function show3(whichLayerOn) {
	document.getElementById('picstrip').style.display=gsBlock;
	document.getElementById('bigpicdiv').style.display=gsNone;
	document.getElementById('mainp1').style.display=gsNone;
	document.getElementById('mainp2').style.display=gsNone;
	document.getElementById('mainp3').style.display=gsNone;
	document.getElementById('mainp4').style.display=gsNone;
	document.getElementById('mainp5').style.display=gsNone;
	document.getElementById('mainp6').style.display=gsNone;
	document.getElementById('mainp7').style.display=gsNone;
	document.getElementById('mainp8').style.display=gsNone;
	document.getElementById('mainp9').style.display=gsNone;
	document.getElementById('mainp10').style.display=gsNone;
	document.getElementById(whichLayerOn).style.display=gsBlock;
}

function hidepicstrip() {
	document.getElementById('picstrip').style.display=gsNone;
}

function getscrolltop() {
  if (navigator.appName == "Microsoft Internet Explorer") {
    if (document.body.scrollTop) {
      return document.body.scrollTop;
    } else {
      return document.documentElement.scrollTop;
    }
  } else {
    return window.pageYOffset;
  }
}

function setscrolltop(top) {
if (navigator.appName == "Microsoft Internet Explorer")
{document.body.scrollTop = top;}
else{window.pageYOffset = top;}
}

function toggleimg(toggle,imgs,maxx,eoff) {
	heavyImage = new Image();
	heavyImage.src=imgs;
	if (toggle==1) {
                strPos = getscrolltop();
                //alert("_" + navigator.appName + "_  " + strPos);
		document.images.bigpic.src=imgs;
		document.getElementById(eoff).style.display=gsNone;
		lastoff = eoff;
                document.getElementById('bigpicdiv').style.height = heavyImage.height + 40;
		document.getElementById('bigpicdiv').style.display=gsBlock;
                document.getElementById('bigpicdiv').style.top = strPos + "px";
	}
	else {
		document.getElementById('bigpicdiv').style.display=gsNone;
		document.getElementById(lastoff).style.display=gsBlock;
	}
	document.images.bigpic.width=heavyImage.width;
	if (document.images.bigpic.width>maxx) {
		document.images.bigpic.width=maxx;
	}
  }