[Alex_63]

Schwab,

var rightcolumnTop = rightcolumn.offset().top;
var columnPosition = contentWidth - rightcolumnWidth + contentLeftMargin;
var rightcolumnStop = headerHeight + popularPostHeight + contentHeight - rightcolumnHeight;
var columnPositionDown = contentWidth - rightcolumnWidth;
$(window).on("scroll resize",function(){
   var scrlTop = $(this).scrollTop();
   if ( scrlTop > rightcolumnTop ) 
      {
        rightcolumn.addClass("columnfixed");
        rightcolumn.css({"top":"0px", "left": columnPosition - 2 +"px", "width": rightcolumnWidth+"px", });
       }
   if(scrlTop >= rightcolumnStop && rightcolumn.hasClass("columnfixed"))
       {   
          rightcolumn.removeClass("columnfixed");
          rightcolumn.addClass("columnabsolute");
          rightcolumn.css({"top": contentHeight - rightcolumnHeight+"px", "left": columnPositionDown - 2 +"px", "width": rightcolumnWidth+"px", });  
        }
   if(scrlTop < rightcolumnStop && rightcolumn.hasClass("columnabsolute"))
        {
           rightcolumn.removeClass("columnabsolute");
           rightcolumn.addClass("columnfixed");
           rightcolumn.css({"top":"0px", "left": columnPosition - 2 +"px", "width": rightcolumnWidth+"px", });
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   if(scrlTop <= rightcolumnTop && rightcolumn.hasClass("columnfixed"))
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});