function showHide(active) 
{
	objS = document.getElementById(active);

	if (objS.style.display == 'block') 
	{ 
		state = 'none'; 
	} 
	else 
	{ 
		state = 'block'; 
	} 
	
	objS.style.display = state;
}

function changeIcon(name_input,img_url)
{ 
	document.images[name_input].src = img_url;
}