/* Display e-mail overlay. */
function overlayTenderForm() {

			// Hide scrollbars.
			document.body.style.overflow = 'hidden';

			// Make overlay visible.
			el = document.getElementById("overlay");
			el.style.top = getScrollY() + 'px';
			el.style.visibility = 'visible';
			el2 = document.getElementById("tenderFrame");
			el2.style.left = '0px';
			el2.style.top = getScrollY() + 'px';
			el2.style.visibility = 'visible';
}


/* Display e-mail overlay. */
function closeForm() {

	// Show scrollbars.
	document.body.style.overflow = 'auto';

	// Make overlay visible.
	el = document.getElementById("overlay");
	el.style.visibility = 'hidden';

	el2 = document.getElementById("tenderFrame");
	el2.style.left = '-10000px';
	el2.style.top = '0px';
	el2.style.visibility = 'hidden';	

}


// Get scroll position.
function getScrollY() {
  var scrOfY = 0;
	return (document.all ? (document.compatMode != 'BackCompat' ? document.documentElement.scrollTop : document.scrollTop) : window.pageYOffset);
  //return document.documentElement.scrollTop;
  /*
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
  }
  return scrOfY;*/
}