window.onload = setBehaviours;

function addExternalLinks() {
	var aA = document.getElementsByTagName('A');
	for (var i = 0; i < aA.length; i++) {
		if (aA[i].className == 'zewnetrzny') {
			aA[i].target = '_blank';
		}
	}
}

function setBehaviours() {
	if (document.getElementById) {
		// DODANIE ZEWNETRZNYCH LINEK
		addExternalLinks();
	}
}