function getT(sId) {
	return document.getElementsByTagName(sId);
}

// Nahrada atributu target
function externalLinks(){
	if(!document.getElementsByTagName) {
		return;
	}
	var anchors = getT('a');
	for(var i=0;i<anchors.length; i++) {
		var anchor = anchors[i];
		if(anchor.getAttribute('href') && anchor.getAttribute('rel')=='external') {
			anchor.target = '_blank'; // anchor.onclick = function() { return !window.open(this.href); }
			anchor.className = 'external';

		}
	}
}



// Pridavani udalosti pri nacteni stranky
function addLoadEvent(func){
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	}
	else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}
addLoadEvent(externalLinks);