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(/\bsameheight\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();

 }

}