function block_hover(id){
	var hover_color = "#4f5050";
	var hover_bcolor = "#333";
	var elem=document.getElementById('d'+id);
	elem.style.backgroundColor = hover_color;

	//var elem=document.getElementById('rt1'+id);
	//elem.style.backgroundColor = hover_color;
	var elem=document.getElementById('rt2'+id);
	elem.style.backgroundColor = hover_color;
	var elem=document.getElementById('rt3'+id);
	elem.style.backgroundColor = hover_color;
	var elem=document.getElementById('rt4'+id);
	elem.style.backgroundColor = hover_color;

	var elem=document.getElementById('rb1'+id);
	elem.style.backgroundColor = hover_bcolor;
	var elem=document.getElementById('rb2'+id);
	elem.style.backgroundColor = hover_bcolor;
	var elem=document.getElementById('rb3'+id);
	elem.style.backgroundColor = hover_bcolor;
	//var elem=document.getElementById('rb4'+id);
	//elem.style.backgroundColor = hover_color;
}

function block_unhover(id){
	var color = "#1b1b1b";
	var bcolor = "#333";
	var elem=document.getElementById('d'+id);
	elem.style.backgroundColor = color;

	//var elem=document.getElementById('rt1'+id);
	//elem.style.backgroundColor = color;
	var elem=document.getElementById('rt2'+id);
	elem.style.backgroundColor = color;
	var elem=document.getElementById('rt3'+id);
	elem.style.backgroundColor = color;
	var elem=document.getElementById('rt4'+id);
	elem.style.backgroundColor = color;

	var elem=document.getElementById('rb1'+id);
	elem.style.backgroundColor = bcolor;
	var elem=document.getElementById('rb2'+id);
	elem.style.backgroundColor = bcolor;
	var elem=document.getElementById('rb3'+id);
	elem.style.backgroundColor = bcolor;
	//var elem=document.getElementById('rb4'+id);
	//elem.style.backgroundColor = color;
}