function changediv(mygetdiv) {
	
	var productElement = document.getElementById(mygetdiv + '_nav_li');
	if (productElement != null) {
		var mytop = (document.getElementById(mygetdiv + '_nav_li').offsetTop) + 20;
		
		productElement = document.getElementById(mygetdiv + '_nav');
		if (productElement != null) {
			document.getElementById(mygetdiv + '_nav').style.top = mytop + 'px';
		}
	}
}

function show_dropdown(safe_name) {
	
	if (document.getElementById(safe_name + '_nav')) {
		document.getElementById(safe_name + '_nav').style.display = 'block';
		
		document.getElementById(safe_name + '_nav_li').style.backgroundColor = '#383838';
	}
	
}

function hide_dropdown(safe_name) {
	
	if (document.getElementById(safe_name + '_nav')) {
		document.getElementById(safe_name + '_nav').style.display = 'none';
		
		document.getElementById(safe_name + '_nav_li').style.background = 'none';
	}
	
}