nav1_1 = new Image();
nav1_1.src = "images/nav_company.gif";
nav1_2 = new Image();
nav1_2.src = "images/nav_company_o.gif";
nav2_1 = new Image();
nav2_1.src = "images/nav_philosophy.gif";
nav2_2 = new Image();
nav2_2.src = "images/nav_philosophy_o.gif";
nav3_1 = new Image();
nav3_1.src = "images/nav_gallery.gif";
nav3_2 = new Image();
nav3_2.src = "images/nav_gallery_o.gif";
nav4_1 = new Image();
nav4_1.src = "images/nav_services.gif";
nav4_2 = new Image();
nav4_2.src = "images/nav_services_o.gif";
nav5_1 = new Image();
nav5_1.src = "images/nav_contact.gif";
nav5_2 = new Image();
nav5_2.src = "images/nav_contact_o.gif";

function img1(img) {document[img].src = eval(img + "_2.src");}
function img2(img) {document[img].src = eval(img + "_1.src");}

function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=540,height=450,left = 413,top = 159');");
}
function GPopUp(page) {
  			     var winl = (screen.width - 550) / 2;
			     var wint = (screen.height - 705) / 2;
				specs = "toolbar=no,location=no,directories=no,status=no,scrollbars=no,width=550,height=705,left=" + winl +",top = " + wint + ",resizable=no,menubar=no";
				nw = window.open(page, 'NLI', specs);
				nw.focus();
			}