var object=new Array();
object['sitemap']= new objectdata(100,30,"../images/site_map_but_inv.gif","../images/site_map_but.gif","Vai alla Site Map");
object['cafe']= new objectdata(100,30,"../images/chat_but_inv.gif","../images/chat_but.gif","Vai al Berchet Cafe");
object['whats']= new objectdata(100,30,"../images/whats_but_inv.gif","../images/whats_but.gif","Le novità del Berchet!!");
object['didattica']= new objectdata(100,30,"../images/didattica_but_inv.gif","../images/didattica_but.gif","I materiali didattici del Berchet");
object['informazioni']= new objectdata(100,30,"../images/ser_inter_but_inv.gif","../images/ser_inter_but.gif","Posta, Voti Online, Orari, etc");
object['storia']= new objectdata(100,30,"../images/storia_but_inv.gif","../images/storia_but.gif","La gloriosa storia del nostro liceo");
object['autonomia']= new objectdata(100,30,"../images/aut_but_inv.gif","../images/aut_but.gif","La storia dell'Autonomia al Berchet");
// add more objects above this line

function objectdata(hsize,vsize,replaceimg,restoreimg,mess) {
    this.mess=mess; this.simg=new Image(hsize,vsize);
	this.simg.src=replaceimg;
	this.rimg=new Image(hsize,vsize);
	this.rimg.src=restoreimg;
}

function ReplaceOrig(name) {
 window.status=object[name].mess;
 document[name].src=object[name].simg.src;
}

function RestoreOrig(name) { 
   window.status="";
   document[name].src=object[name].rimg.src;
}