function DivAnim(id,mode) {
    if(document.getElementById) {
        element = document.getElementById(id);
	arrow_d = document.getElementById('arrow_down');
	arrow_u = document.getElementById('arrow_up');
    } else if(document.all) {
        element = document.all[id];
    } else { 
        return;
    }

    if(element.style) {
        if(mode == 0) {
            if(element.style.display == 'block' ) {
                element.style.display = 'none';
		arrow_u.style.display = 'none';
		arrow_d.style.display = 'block';
            } else {
		arrow_d.style.display = 'none';
                element.style.display = 'block';
		arrow_u.style.display = 'block';
            }
        } else if(mode == 1) {
            element.style.display = 'block';
        } else if(mode == -1) {
            element.style.display = 'none';
        }
    }
}