if (Drupal.jsEnabled) {
	$(document).ready(function() {  		
		$('span.bls').hover(function(E) {
      var scrollTop = parseInt($(document).scrollTop());
      var scrollLeft = parseInt($(document).scrollLeft());
      var docWidth = parseInt($(window).width());
      var docHeight = parseInt($(window).height());
      var winRight = scrollLeft + docWidth;
      var winBottom = scrollTop + docHeight;

	    var popup = $('#popup-'+this.id);
	    var leftShift = $(this).offset().left - $(this).position().left;
	    var topShift = $(this).offset().top - $(this).position().top;

      popup.css('visibility', 'visible');

      var popupwidth = parseInt(popup.css('width'));
      var posX = $(this).offset().left - scrollLeft - leftShift;
      if (posX + popupwidth + leftShift > docWidth) {
    	  posX = docWidth - popupwidth - leftShift - 5;
      }
      popup.css('left', posX);

      var popupheight = parseInt(popup.css('height'));
      var posY = $(this).offset().top + $(this).height() - topShift;
      if (posY + popupheight + topShift > winBottom) {
      	posY = winBottom - popupheight - topShift - 5;
      }
      popup.css('top', posY);
		},
		function() {
			$('#popup-'+this.id).css('visibility', 'hidden');
		});
		
		$('span.popup').hover(function(E) {
			E.target.style.visibility = "visible";
		},
		function(E) {
			E.target.style.visibility = "hidden";
		});
		
	});
}