// JavaScript Document


    matchHeight=function(){

         var divs,contDivs,maxHeight,divHeight,d;

         // get all <div> elements in the document

         divs=document.getElementsByTagName('div');

         contDivs=[];

         // initialize maximum height value

         maxHeight=0;

         // iterate over all <div> elements in the document

         for(var i=0;i<divs.length;i++){

              // make collection with <div> elements with class attribute 'container'

              if(/\bcontainer\b/.test(divs[i].className)){

                    d=divs[i];

                    contDivs[contDivs.length]=d;

                    // determine height for <div> element

                    if(d.offsetHeight){

                         divHeight=d.offsetHeight;

                    }

                    else if(d.style.pixelHeight){

                         divHeight=d.style.pixelHeight;

                    }

                    // calculate maximum height

                    maxHeight=Math.max(maxHeight,divHeight);

              }

         }

         // assign maximum height value to all of container <div> elements

         for(var i=0;i<contDivs.length;i++){

              contDivs[i].style.height=maxHeight;

         }

    }

    // execute function when page loads

    window.onload=function(){

         if(document.getElementsByTagName){

              matchHeight();

         }

    }