var digital_network_dropdown_interval = null;
var digital_network_dropdown_height = 1;
var digital_network_dropdown_max = 89;

function digital_network_over(id_object, image_name) {
	id_object.src = 'http://www.creativehandbook.com/images/'+image_name;

	clearInterval(digital_network_dropdown_interval);
	digital_network_dropdown_interval = setInterval("animate_digital_network_dropdown_down()",100);
}

function digital_network_out(id_object, image_name) {
	id_object.src = 'http://www.creativehandbook.com/images/'+image_name;

	clearInterval(digital_network_dropdown_interval);
	digital_network_dropdown_interval = setInterval("animate_digital_network_dropdown_up()",100);
}

function digital_network_menu_over() {
	clearInterval(digital_network_dropdown_interval);
	digital_network_dropdown_interval = setInterval("animate_digital_network_dropdown_down()",100);
}


function digital_network_menu_out() {
	clearInterval(digital_network_dropdown_interval);
	digital_network_dropdown_interval = setInterval("animate_digital_network_dropdown_up()",100);
}