if (document.images) {

pic0000on= new Image();
pic0000on.src="images/accueil_on.png";
pic0000off= new Image();
pic0000off.src="images/accueil_off.png";

pic000on= new Image();
pic000on.src="images/home_on.png";
pic000off= new Image();
pic000off.src="images/home_off.png";

pic00on= new Image();
pic00on.src="images/intranet_on.png";
pic00off= new Image();
pic00off.src="images/intranet_off.png";

picon= new Image();
picon.src="images/en_on_page.png";
picoff= new Image();
picoff.src="images/en_off_page.png";

pic0on= new Image();
pic0on.src="images/fr_on_page.png";
pic0off= new Image();
pic0off.src="images/fr_off_page.png";

pic1on= new Image();
pic1on.src="images/about_on.png";
pic1off= new Image();
pic1off.src="images/about_off.png";

pic2on= new Image();
pic2on.src="images/activities_on.png";
pic2off= new Image();
pic2off.src="images/activities_off.png";

pic3on= new Image();
pic3on.src="images/oct_on.png";
pic3off= new Image();
pic3off.src="images/oct_off.png";

pic4on= new Image();
pic4on.src="images/oct_eu_relations_on.png";
pic4off= new Image();
pic4off.src="images/oct_eu_relations_off.png";

pic5on= new Image();
pic5on.src="images/visual_identity_and_relations_on.png";
pic5off= new Image();
pic5off.src="images/visual_identity_and_relations_off.png";

pic6on= new Image();
pic6on.src="images/contact_on.png";
pic6off= new Image();
pic6off.src="images/contact_off.png";

pic7on= new Image();
pic7on.src="images/admin_on.png";
pic7off= new Image();
pic7off.src="images/admin_off.png";

picfr8on= new Image();
picfr8on.src="images/calendar_on.png";
picfr8off= new Image();
picfr8off.src="images/calendar_off.png";

pic77on= new Image();
pic77on.src="images/outline_on.png";
pic77off= new Image();
pic77off.src="images/outline_off.png";
}


function rollon(imgName) {
	if (document.images) {
	document[imgName].src = eval(imgName + "on.src");
	}
}

function rolloff(imgName) {
	if (document.images) {
	document[imgName].src = eval(imgName + "off.src");
	}
}

function showBranch(branch){
	var objBranch = document.getElementById(branch).style;
	if(objBranch.display=="block")
		objBranch.display="none";
	else
		objBranch.display="block";
	}

/* for subnav roll overs of the arrows */
function arrMouseover(imgName) {
	var b = getElementsbyTagName('img');
	
	var c = '';
	}