if (document.images) {		btn1on = new Image();  btn1on.src = "images/btn_home2_78x22.gif";  btn1off = new Image();  btn1off.src = "images/btn_home_78x22.gif";  btn2on = new Image();  btn2on.src = "images/btn_aboutus2_95x22.gif";  btn2off = new Image();  btn2off.src = "images/btn_aboutus_95x22.gif";	btn3on = new Image();  btn3on.src = "images/btn_events2_70x22.gif";  btn3off = new Image();  btn3off.src = "images/btn_events_70x22.gif";	btn4on = new Image();  btn4on.src = "images/btn_enrollment2_105x22.gif";  btn4off = new Image();  btn4off.src = "images/btn_enrollment_105x22.gif";		btn5on = new Image();  btn5on.src = "images/btn_faqs2_65x22.gif";  btn5off = new Image();  btn5off.src = "images/btn_faqs_65x22.gif";		btn6on = new Image();  btn6on.src = "images/btn_contactus2_105x22.gif";  btn6off = new Image();  btn6off.src = "images/btn_contactus_105x22.gif";		btn7on = new Image();  btn7on.src = "images/btn_haumana_142x22.gif";  btn7off = new Image();  btn7off.src = "images/btn_haumana2_142x22.gif";}function changeImages() {  if (document.images) {    for (var i=0; i<changeImages.arguments.length; i+=2) {      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");    }  }}