// JavaScript Document

function externalLinks() {
 	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
			if (anchor.getAttribute("href") &&
				anchor.getAttribute("rel") == "external")
				anchor.target = "_blank";
	}
}
window.onload = externalLinks;

// ------------------- pop up okno edukacní otázky
function noveokno() 
{
        Win1 = window.open("otazky.php","","scrollbars=no,toolbar=no,location=no,menubar=no,status=no,resizable=no,width=550,height=420");
}

<!--
function MM_jumpMenuGo(objId,targ,restore){ //v9.0
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  if (restore) selObj.selectedIndex=0; }
}
//-->