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(); 
     } 
} 


