var cando=false;
var browserName=navigator.appName;
var browserVer=parseInt(navigator.appVersion);
if(browserName=="Netscape"&&browserVer>=3)cando=true;
else if(browserVer>=4)cando=true;
if(cando){
imag=new Array();
imag[0]="images/m1.gif";
imag[1]="images/m12.gif";
imag[2]="images/m2.gif";
imag[3]="images/m22.gif";
imag[4]="images/m3.gif";
imag[5]="images/m32.gif";
imag[6]="images/m4.gif";
imag[7]="images/m42.gif";
imag[8]="images/m5.gif";
imag[9]="images/m52.gif";
imag[10]="images/m6.gif";
imag[11]="images/m62.gif";
imag[12]="images/m7.gif";
imag[13]="images/m72.gif";
im=new Array()
for(var i=0;i<imag.length;i++){
if(imag[i]!=""){
im[i]=new Image();
im[i].src=imag[i];
}
}
}
function swtch(num,imgname){
if(cando)eval("document.getElementById('"+imgname+"').src = im[num].src;");
}