function rozmiar_tekstu(pole, rozmiar) {
	document.getElementById(pole).style.fontSize = rozmiar + "px";
	
	var txt1 = document.getElementById('txt1');
	var txt2 = document.getElementById('txt2');
	var txt3 = document.getElementById('txt3');
	
	if(rozmiar==10) {
		txt1.style.color='#1c4477';
		txt2.style.color='#787878';
		txt3.style.color='#787878';
		txt1.style.fontWeight='bold';
		txt2.style.fontWeight='normal';
		txt3.style.fontWeight='normal';
	} else if(rozmiar==12) {
		txt1.style.color='#787878';
		txt2.style.color='#1c4477';
		txt3.style.color='#787878';
		txt1.style.fontWeight='normal';
		txt2.style.fontWeight='bold';
		txt3.style.fontWeight='normal';
	} else if(rozmiar==15) {
		txt1.style.color='#787878';
		txt2.style.color='#787878';
		txt3.style.color='#1c4477';
		txt1.style.fontWeight='normal';
		txt2.style.fontWeight='normal';
		txt3.style.fontWeight='bold';
	}
}