function show(category)
{
	if(category=="1") 
	{
		document.getElementById("image").style.display = "";
		document.getElementById("video").style.display = "none";
	}
	else if(category=="2") 
	{
		document.getElementById("image").style.display = "";
		document.getElementById("video").style.display = "";
	}
	else 
	{
		alert("Please, select the category");
	}
}