var browsertype=false;
if((navigator.appName=="Netscape")&&(parseInt(navigator.appVersion)>=3)) browsertype=true;
if((navigator.appName=="Microsoft Internet Explorer")&&(parseInt(navigator.appVersion)>=4)) browsertype=true;

            if (document.images) { 
            img1on = new Image(); 
            img1on.src = "nav/homeon.gif"; 
            img2on = new Image(); 
            img2on.src = "nav/gigson.gif";
            img3on = new Image(); 
            img3on.src = "nav/abouton.gif"; 
            img4on = new Image(); 
            img4on.src = "nav/faqon.gif";  
            img5on = new Image(); 
            img5on.src = "nav/musicon.gif";  
            img6on = new Image(); 
            img6on.src = "nav/workson.gif"; 
            img7on = new Image(); 
            img7on.src = "nav/storeon.gif"; 
            img8on = new Image(); 
            img8on.src = "nav/galleryon.gif"; 
            img9on = new Image(); 
            img9on.src = "nav/musingson.gif"; 
            img10on = new Image(); 
            img10on.src = "nav/mediaon.gif"; 
            img11on = new Image(); 
            img11on.src = "nav/contacton.gif"; 
			img12on = new Image(); 
            img12on.src = "nav/twitteron.gif"; 
			img13on = new Image(); 
            img13on.src = "nav/joinon.gif"; 
			img14on = new Image(); 
            img14on.src = "nav/myspaceon.gif"; 
            img15on = new Image(); 
            img15on.src = "nav/videoon.gif";

			img1off = new Image(); 
            img1off.src = "nav/homeoff.gif"; 
            img2off = new Image(); 
            img2off.src = "nav/gigsoff.gif";
            img3off = new Image(); 
            img3off.src = "nav/aboutoff.gif";
            img4off = new Image(); 
            img4off.src = "nav/faqoff.gif"; 
            img5off = new Image(); 
            img5off.src = "nav/musicoff.gif"; 
            img6off = new Image(); 
            img6off.src = "nav/worksoff.gif";
            img7off = new Image(); 
            img7off.src = "nav/storeoff.gif";
            img8off = new Image(); 
            img8off.src = "nav/galleryoff.gif";
            img9off = new Image(); 
            img9off.src = "nav/musingsoff.gif";
            img10off = new Image(); 
            img10off.src = "nav/mediaoff.gif";
            img11off = new Image(); 
            img11off.src = "nav/contactoff.gif";
			img12off = new Image(); 
            img12off.src = "nav/twitteroff.gif"; 
			img13off = new Image(); 
            img13off.src = "nav/joinoff.gif";
			img14off = new Image(); 
            img14off.src = "nav/myspaceoff.gif"; 
            img15off = new Image(); 
            img15off.src = "nav/videooff.gif";
        } 

// activate 
function imgon (imgName) { 
         if (document.images) { 
             document[imgName].src = eval (imgName + "on.src") ; 

} 

} 

// deactivate 
function imgoff (imgName) { 
         if (document.images) { 
             document[imgName].src = eval(imgName + "off.src"); 
           } 
 }