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();
	}

}

<!--
/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Robin Jones :: http://www.robinjones1.freeuk.com */

function jumpBox(list) {
  location.href = list.options[list.selectedIndex].value
}
-->