boutonOff = new Image();
boutonOff.src = "";
boutonOn = new Image();
boutonOn.src = "";

function Active(NomImage) {
	document[NomImage].src = eval(NomImage + "On.src");
}

function Inactive(NomImage) {
	document[NomImage].src = eval(NomImage + "Off.src");
}

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.getAttribute("href") && anchor.getAttribute("rel") == "tag" ) )
		anchor.target = "_blank";
	}
}

window.onload = externalLinks;