// Random (water)images on homepage
var pathToImages = '/design/empowers/images/top/'
var images = new Array( 'top01.jpg', 'top02.jpg', 'top03.jpg', 'top04.jpg', 'top05.jpg', 'top06.jpg', 'top07.jpg' )
var alttext = new Array('Water canal through village', 'Egypt Boy Looking into Well', 'Egypt Girl Getting Water from tap', ' ', 'Manset Kasab Beni-Suef', 'Manset Kasab Fields Egypt', ' ')
var numberOfRandomImages = images.length;

function writeRandomImages(){
	var idx=Math.floor(Math.random()*numberOfRandomImages);
	return '<img src="'+pathToImages+images[idx]+'" width="165" height="165" alt="'+alttext[idx]+'" border="0"><br>';
}

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)+5;
		}
	}
	// assign maximum height value to all of container <div> elements
	for(var i=0;i<contDivs.length;i++){
		contDivs[i].style.height=maxHeight+'px';
	}
}
// execute function when page loads
window.onload=function(){
	if(document.getElementsByTagName){
		matchHeight();
	}
}