// Top Nav Portal
topnav1 = new RollOver(
approot + "/images/navportal/servicecare1.gif", approot + "/images/navportal/servicecare2.gif");
topnav2 = new RollOver(
approot + "/images/navportal/partswarranty1.gif", approot + "/images/navportal/partswarranty2.gif");
topnav3 = new RollOver(
approot + "/images/navportal/referencecenter1.gif", approot + "/images/navportal/referencecenter2.gif");
topnav4 = new RollOver(
approot + "/images/navportal/whatsnew1.gif", approot + "/images/navportal/whatsnew2.gif");
topnav5 = new RollOver(
approot + "/images/navportal/feedbackcenter1.gif", approot + "/images/navportal/feedbackcenter2.gif");
topnav6 = new RollOver(
approot + "/images/navportal/myaircraft1.gif", approot + "/images/navportal/myaircraft2.gif");
topnav7 = new RollOver(
approot + "/images/navportal/myprofile1.gif", approot + "/images/navportal/myprofile2.gif");