function matchHeight(){
     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+'px';
		  contDivs[i].style.paddingBottom='0';
     }
}

if( window.attachEvent ){
	window.attachEvent( 'onload', matchHeight );
} else {
	window.addEventListener( 'load', matchHeight, false );
}