// 08-17-98 LAB
// javascript code for rollover highlights on navigation keys
// first part of code determines whether the browser can
// run the program

// notice to users that debugging is underway

//	alert("We're debugging the script for rollover highlights on the navigation buttons. Surfing the site now will drive you nuts!  Better come back later.  Sorry for any inconvenience.")

// initialize variables to indicate browser is NOT javaScript capable

	var net3 = -1;
	var net4 = -1;
	var IE4 = -1;
	var js_capable = -3;
//	alert(js_capable);
//	alert(net3 + " " + net4 + " " + IE4);

// get browser name and version

	var browser = (navigator.appName) + (navigator.appVersion);
//	alert(browser);
	
// is browser Netscape3?
// if not, net3 will be set to -1

	net3 = (browser.indexOf("Netscape3"));
//	alert(net3);

// is browser Netscape4?
// if not, net4 will be set to -1

	net4 = (browser.indexOf("Netscape4"));
//	alert(net4);

// is browser IE4?
// if not, IE4 will be set to -1

	IE4 = (browser.indexOf("Explorer4"));
//	alert(IE4);

// is browser javascript capable?
// if not, js_capable will be equal to -3

	js_capable = (IE4 + net3 + net4);
//	alert(js_capable);

// if browser is javascript capable, run rollover script

	if (js_capable > -3)
//	alert("Browser is JavaScript capable");
  {


   // One of these for each button
   var bt1ro = new Image();  // the "Home" button
   bt1ro.src = "assets/images/n1r.gif";

   var bt2ro = new Image();  // the "Bio" button
   bt2ro.src = "/assets/images/n2r.gif";

   var bt10ro = new Image();  // the "Issues" button
   bt10ro.src = "/assets/images/b10rn.gif";

   var bt9ro = new Image();  // the "Campaign Trail" button
   bt9ro.src = "/assets/images/n9rn.gif";

   var bt3ro = new Image();  // the "In His Own Words" button
   bt3ro.src = "/assets/images/n3r.gif";

   var bt11ro = new Image();  // the "In the News" button
   bt11ro.src = "/assets/images/n11rn.gif";

   var bt4ro = new Image();  // the "Press Room" button
   bt4ro.src = "/assets/images/n4r.gif";

   var bt5ro = new Image();  // the "Gallery" button
   bt5ro.src = "/assets/images/n5r.gif";

   var bt6ro = new Image();  // the "Involved" button
   bt6ro.src = "/assets/images/n6r.gif";

   var bt7ro = new Image();  // the "VoterInfo" button
   bt7ro.src = "/assets/images/n7r.gif";

   var bt13ro = new Image();  // the "Links" button
   bt13ro.src = "/assets/images/n13r.gif";

   var bt8ro = new Image();  // the "Contact" button
   bt8ro.src = "/assets/images/n8r.gif";

}

function doRollover(theImage, newSrc) {
	if (js_capable > -3) {
      theImage.src = newSrc;
   }
}