function hilight(heading) {
	reset_heading('condesign');
	reset_heading('polypipe');
	reset_heading('steelfab');
	reset_heading('install');
	reset_heading('pipethread');
	reset_heading('maintenance');
	reset_heading('trenching');
	reset_heading('pumprepairs');	
	reset_heading('irrrepairs');
	
	reset_heading('irri');
	reset_heading('agri');
	reset_heading('diy');
	reset_heading('pumps');
	reset_heading('tanks');
	
	hilight_heading(heading);
}

function hilight_heading(heading) {
	var obj = document.getElementById(heading);
	if (obj)
		obj.style.color = '#99cc00';
}

function reset_heading(heading) {
	var obj = document.getElementById(heading);
	if (obj)
		obj.style.color = '#03587c';
}