var elem_divReturnFrame,elem_tabReturnFrame,elem_divReturnTx,elem_tabReturnTx,elem_divReturnTxOver,elem_imgReturnTxOver;
var elem_divEmeraldBaseLeft,elem_divEmeraldBaseRight;
var elem_imgEmeraldBaseLeft,elem_imgEmeraldBaseRight;
var returnType = 'banner';

function SetReturnBanner()
  {
  elem_divReturnFrame = document.getElementById('divReturnFrame');
  elem_tabReturnFrame = document.getElementById('tabReturnFrame');
  elem_divReturnTx = document.getElementById('divReturnTx');
  elem_tabReturnTx = document.getElementById('tabReturnTx');
  elem_divReturnTxOver = document.getElementById('divReturnTxOver');
  elem_imgReturnTxOver = document.getElementById('imgReturnTxOver');
  elem_divEmeraldBaseLeft = document.getElementById('divEmeraldBaseLeft');
  elem_imgEmeraldBaseLeft = document.getElementById('imgEmeraldBaseLeft');
  elem_divEmeraldBaseRight = document.getElementById('divEmeraldBaseRight');
  elem_imgEmeraldBaseRight = document.getElementById('imgEmeraldBaseRight');
  
  elem_divEmeraldBaseLeft.style.left = 4 +'px';
  //alert(''+ window.innerWidth); // E.g. "1024".
  //alert(''+ elem_imgEmeraldBaseRight.width);
  elem_divEmeraldBaseRight.style.left = (window.innerWidth - elem_imgEmeraldBaseRight.width - 4) +'px';
  //alert(''+ elem_divEmeraldBaseLeft.style.left);
  var emeraldLeftLf = noPx(elem_divEmeraldBaseLeft.style.left);
  //alert(''+ elem_imgEmeraldBaseLeft.width); // E.g. "124".
  var emeraldLeftWid = elem_imgEmeraldBaseLeft.width;
  var emeraldRightLf = noPx(elem_divEmeraldBaseRight.style.left);
  //alert(''+ emeraldLeftLf);
  //alert(''+ emeraldLeftWid); // E.g. "124".
  //alert(''+ emeraldRightLf);
  var emeraldsGap = emeraldRightLf - (emeraldLeftLf + emeraldLeftWid);
  //alert(''+ emeraldsGap);
  //alert(''+ elem_divEmeraldBaseRight.style.left);
  if (returnType == 'banner')
    {
    var returnWid = emeraldsGap - 10;
    elem_divReturnFrame.style.width = (returnWid) +'px';
    elem_tabReturnFrame.style.width = (returnWid) +'px';
    elem_divReturnTx.style.width = (returnWid) +'px';
    elem_tabReturnTx.style.width = (returnWid) +'px';
    elem_divReturnFrame.style.left = (emeraldLeftLf + emeraldLeftWid) +'px';
    //elem_tabReturnFrame.style.left = (emeraldLeftLf + emeraldLeftWid) +'px';
    elem_tabReturnFrame.style.left = 0 +'px'; // "0px" because tab is within div.
    elem_divReturnTx.style.left = (emeraldLeftLf + emeraldLeftWid) +'px';
    elem_tabReturnTx.style.left = 5 +'px'; // "0px" because tab is within div.
    elem_divReturnFrame.style.top = (window.innerHeight - 50) +'px';
    elem_tabReturnFrame.style.top = 0 +'px'; // "0px" because tab is within div.
    elem_divReturnTx.style.top = (window.innerHeight - 50) +'px';
    elem_tabReturnTx.style.top = 0 +'px'; // "0px" because tab is within div.
    elem_divReturnTx.style.height = 40 +'px';
    elem_tabReturnTx.style.height = 40 +'px';
    elem_divReturnFrame.style.height = 40 +'px';
    elem_tabReturnFrame.style.height = 40 +'px';
    elem_tabReturnFrame.style.visibility = 'hidden'; // So user can see picture behind.
    elem_divReturnFrame.style.position = 'fixed';
    elem_divReturnTx.style.position = 'fixed';
    //alert('');
    }
  //alert(''+ window.innerHeight);
  }

function noPx(str)
  {
  var chr = String.fromCharCode(112); // "p" from "px" (code for pixels).
  //alert("chr="+ chr);
  var posn = str.indexOf(chr); // Stas @ posn 0.
  //var posn = str.lastIndexOf(chr) + 1; // Stas @ posn 0.
  //alert( "str.length="+ str.length );
  var numOnly = eval( str.substring(0,posn) );
  //alert("numOnly="+ numOnly);
  return numOnly;
  }