app = navigator.appName;
ver = navigator.appVersion;
mac = ver.indexOf("Macintosh") > 0;
win = ver.indexOf("Win") > 0;
vnum = parseInt(ver);
k = 0;

mook = (((app=="Netscape")&&(vnum>=3)) || 
	((mac)&&(app=="Microsoft Internet Explorer")&&(vnum>=3.01)) || 
	((win)&&(app=="Microsoft Internet Explorer")&&(vnum>=4)));
//mook=false;

if ( mook ) 
{
    off = new makeImageArray(10);
    k = 0;
    off[k].src = "images/logotype.gif"; k++;
    off[k].src = "images/title.gif"; k++;
    off[k].src = "images/home.gif"; k++;
    off[k].src = "images/about.gif"; k++;
    off[k].src = "images/product.gif"; k++;
    off[k].src = "images/service.gif"; k++;
    off[k].src = "images/customer.gif"; k++;
    off[k].src = "images/contact.gif"; k++;

    over = new makeImageArray(10);
    k = 0;
    over[k].src = "images/logotype-over.gif"; k++;
    over[k].src = "images/title-over.gif"; k++;
    over[k].src = "images/home-over.gif"; k++;
    over[k].src = "images/about-over.gif"; k++;
    over[k].src = "images/product-over.gif"; k++;
    over[k].src = "images/service-over.gif"; k++;
    over[k].src = "images/customer-over.gif"; k++;
    over[k].src = "images/contact-over.gif"; k++;

    down = new makeImageArray(10);
    k = 2;
    down[k].src = "images/home-down.gif"; k++;
    down[k].src = "images/about-down.gif"; k++;
    down[k].src = "images/product-down.gif"; k++;
    down[k].src = "images/service-down.gif"; k++;
    down[k].src = "images/customer-down.gif"; k++;
    down[k].src = "images/contact-down.gif"; k++;
} 


function makeImageArray( n ) 
{
	this.length = n;
	for (var i=0; i<=n; i++) {this[i] = new Image();}
	return this;
}
            
function mOut( num ) 
{
	if(mook) {if(off[num].src!="") document.images[num].src=off[num].src; }                   
}
                
function mOver( num ) 
{
	if(mook) {if(over[num].src!="") document.images[num].src=over[num].src; }
}
                
function mDown( num ) 
{
	if(mook) {if(down[num].src!="") document.images[num].src=down[num].src; }
}