function show_selection(id){
	turn_off();
	document.getElementById(id).style.color="#004304";
	document.getElementById(id).style.fontWeight="700";
	document.getElementById('b_'+id).style.visibility="visible";
};

function turn_off(){
	for(var i=0; i<arrElements.length; i++){
		document.getElementById(arrElements[i][0]).style.color="#3d3d3d";
		document.getElementById(arrElements[i][0]).style.fontWeight="400";
		document.getElementById('b_'+arrElements[i][0]).style.visibility="hidden";
	};
};

function size_border(borderId,containerId){
	document.getElementById(borderId).style.height=document.getElementById(containerId).offsetHeight+"px";
};