function equal_height() {
        var elements = new Array(), pads = new Array(), height = 0;
        var element, padding;
        for( i = 0; i < arguments.length; i++ ) {
                element = document.getElementById( arguments[i] );
                elements.push( element );
                element.style.paddingBottom = '';
                if( element.offsetHeight > height ) {
                        height = element.offsetHeight;
                }
        }

        for( i = 0; i < elements.length; i++ ) {
                padding = height - elements[i].offsetHeight;
                elements[i].style.paddingBottom = padding + "px";
        }
}