[рони]

zkolya,

$("#btn4").click(function(){
   var parentDivId = $(this).parent().attr('id');
     var widthparent=$("#"+parentDivId).width();
     var heightparent=$("#"+parentDivId).height();
     var c_t=$("table");
     var posit=" ";
     c_t.each(function(indx, el){
          var position = $(this).position();
          posit+="#t"+(indx+1)+"{left: " + (100*position.left/widthparent) + "%, top: " + (100*position.top/heightparent)+"%}"
           });
     alert(posit);
});