var max_height=0;
for(i=0;i<items.length;i++){
    if (max_height < document.getElementById(items[i]).offsetHeight){
        max_height = document.getElementById(items[i]).offsetHeight;
    }
}
for(ii=0;ii<items.length;ii++){
    document.getElementById(items[ii]).style.height= max_height+'px';   
    if(document.getElementById('subul'+items[ii].substr(4))) {
        document.getElementById('subul'+items[ii].substr(4)).style.top = max_height+'px';
    }       
}