function sortit(a,b){
	return(a-b)
}

function porihtaj() {
	var kolone=new Array(3)
	kolone[0]=parseInt(document.getElementById('page-left').offsetHeight);
	kolone[1]=parseInt(document.getElementById('page-center').offsetHeight);
	kolone[2]=parseInt(document.getElementById('page-right').offsetHeight);
	kolone.sort(sortit);
	tijelo=kolone[2];
	document.getElementById('page-left').style.height=tijelo+ 'px';
	document.getElementById('page-center').style.height=tijelo+ 'px';
	document.getElementById('page-right').style.height=tijelo+ 'px';
	
}
window.onload = function() { 
	porihtaj();
}