function activeRow(number)
{
	document.getElementById('row_'+number+'_1').style.backgroundColor = 'white';
	document.getElementById('row_'+number+'_2').style.backgroundColor = 'white';
	document.getElementById('row_'+number+'_3').style.backgroundColor = 'white';
}
function normalRow(number, color)
{
	document.getElementById('row_'+number+'_1').style.backgroundColor = color;
	document.getElementById('row_'+number+'_2').style.backgroundColor = color;
	document.getElementById('row_'+number+'_3').style.backgroundColor = color;
}