//Info|Affitti variabili globali in  javascript 
{   //preload rollon states for global nav elements
	chisiamo_on = new Image();
	chisiamo_on.src="images/chisiamo_on.gif";
	dovesiamo_on = new Image();
	dovesiamo_on.src="images/dovesiamo_on.gif";
	partners_on = new Image();
	partners_on.src="images/partners_on.gif";
	ilnostrolavoro_on = new Image();
	ilnostrolavoro_on.src="images/ilnostrolavoro_on.gif";
	contattaci_on = new Image();
	contattaci_on.src="images/contattaci_on.gif";
    //preload normal states for global nav elements
	chisiamo_off = new Image();
	chisiamo_off.src="images/chisiamo_off.gif";
    dovesiamo_off = new Image();
	dovesiamo_off.src="images/dovesiamo_off.gif";
	partners_off = new Image();
	partners_off.src="images/partners_off.gif";
	ilnostrolavoro_off = new Image();
	ilnostrolavoro_off.src="images/ilnostrolavoro_off.gif";
	contattaci_off = new Image();
	contattaci_off.src="images/contattaci_off.gif";
	
}

//function displays rollon state when nav elements are rolled on 
function on(imgName) {
    if (document.images) {
        document[imgName].src = eval(imgName + "_on.src");
    }
}

//function reverts images to normal state when nav elements are rolled off
function off(imgName) {
    if (document.images) {
        document[imgName].src = eval(imgName + "_off.src");
    }
}

//function displays rollon state on tag and icon when side icon is rolled on 
function tagon(imgName) {
    if (document.images) {
        document[imgName].src = eval(imgName + "_on.src");
    }
}

//function reverts side icon to normal state on tag and icon when side icon is rolled off
function tagoff(imgName) {
    if (document.images) {
        document[imgName].src = eval(imgName + "_off.src");
 }
}