// nav button

function change() {
	document.getElementById('mm').style.backgroundColor = "#7B868E"; 
	document.getElementById('mm').style.color = "#fff"; 
	
	document.getElementById('mm1').style.backgroundColor = "#fff"; 
	document.getElementById('mm1').style.color = "#7B868E"; 
	
	document.getElementById('mm2').style.backgroundColor = "#fff"; 
	document.getElementById('mm2').style.color = "#7B868E"; 
	
	document.getElementById('mm3').style.backgroundColor = "#fff"; 
	document.getElementById('mm3').style.color = "#7B868E"; 
}

function change1() {
	document.getElementById('mm').style.backgroundColor = "#fff"; 
	document.getElementById('mm').style.color = "#7B868E"; 
	
	document.getElementById('mm1').style.backgroundColor = "#7B868E"; 
	document.getElementById('mm1').style.color = "#fff";
	
	document.getElementById('mm2').style.backgroundColor = "#fff"; 
	document.getElementById('mm2').style.color = "#7B868E"; 
	
	document.getElementById('mm3').style.backgroundColor = "#fff"; 
	document.getElementById('mm3').style.color = "#7B868E"; 
}

function change2() {
	document.getElementById('mm').style.backgroundColor = "#fff"; 
	document.getElementById('mm').style.color = "#7B868E";
	
	document.getElementById('mm1').style.backgroundColor = "#fff"; 
	document.getElementById('mm1').style.color = "#7B868E"; 
	
	document.getElementById('mm2').style.backgroundColor = "#7B868E"; 
	document.getElementById('mm2').style.color = "#fff";
	
	document.getElementById('mm3').style.backgroundColor = "#fff"; 
	document.getElementById('mm3').style.color = "#7B868E"; 
}

function change3() {
	document.getElementById('mm').style.backgroundColor = "#fff"; 
	document.getElementById('mm').style.color = "#7B868E";
	
	document.getElementById('mm1').style.backgroundColor = "#fff"; 
	document.getElementById('mm1').style.color = "#7B868E"; 
	
	document.getElementById('mm2').style.backgroundColor = "#fff"; 
	document.getElementById('mm2').style.color = "#7B868E"; 
	
	document.getElementById('mm3').style.backgroundColor = "#7B868E"; 
	document.getElementById('mm3').style.color = "#fff";
}

/*-------------------------------------------------------------------------------------------------*/

function change4() {
	document.getElementById('nn4').style.backgroundColor = "#939"; 
	document.getElementById('nn4').style.color = "#fff"; 
	
	document.getElementById('nn5').style.backgroundColor = "#fff"; 
	document.getElementById('nn5').style.color = "#7B868E"; 
	
	document.getElementById('nn6').style.backgroundColor = "#fff"; 
	document.getElementById('nn6').style.color = "#7B868E";
	
	document.getElementById('nn7').style.backgroundColor = "#fff"; 
	document.getElementById('nn7').style.color = "#7B868E";
}

function change5() {
	document.getElementById('nn4').style.backgroundColor = "#fff"; 
	document.getElementById('nn4').style.color = "#7B868E"; 
	
	document.getElementById('nn5').style.backgroundColor = "#939"; 
	document.getElementById('nn5').style.color = "#fff";
	
	document.getElementById('nn6').style.backgroundColor = "#fff"; 
	document.getElementById('nn6').style.color = "#7B868E";
	
	document.getElementById('nn7').style.backgroundColor = "#fff"; 
	document.getElementById('nn7').style.color = "#7B868E";
}

function change6() {
	document.getElementById('nn4').style.backgroundColor = "#fff"; 
	document.getElementById('nn4').style.color = "#7B868E"; 
	
	document.getElementById('nn5').style.backgroundColor = "#fff"; 
	document.getElementById('nn5').style.color = "#7B868E"; 
	
	document.getElementById('nn6').style.backgroundColor = "#939"; 
	document.getElementById('nn6').style.color = "#fff";
	
	document.getElementById('nn7').style.backgroundColor = "#fff"; 
	document.getElementById('nn7').style.color = "#7B868E";
}

function change7() {
	document.getElementById('nn4').style.backgroundColor = "#fff"; 
	document.getElementById('nn4').style.color = "#7B868E"; 
	
	document.getElementById('nn5').style.backgroundColor = "#fff"; 
	document.getElementById('nn5').style.color = "#7B868E"; 
	
	document.getElementById('nn6').style.backgroundColor = "#fff"; 
	document.getElementById('nn6').style.color = "#7B868E";
	
	document.getElementById('nn7').style.backgroundColor = "#939"; 
	document.getElementById('nn7').style.color = "#fff";
}