imgPath = "/img/";
previewArray=["m0.gif","m1.gif","m2.gif","m3.gif","m4.gif","m5.gif","m6.gif","m7.gif","m8.gif","m9.gif","m10.gif","m11.gif","m12.gif","m13.gif","m14.gif","m15.gif","m16.gif","m17.gif","m18.gif"];

if(document.images){
 for(var i=0; i<previewArray.length; i++){
   eval("previewItem"+i+" = new Image()");
   eval("previewItem"+i+".src ='"+imgPath+"a"+previewArray[i]+"'");
 }
}

function roll(num,state){
 if(document.images){
   imgsrc=(state!=0)? "a" : "";
   imgsrc += previewArray[num];
   document.images["m"+num].src=imgPath+imgsrc;
 }
}

function popwin(newURL, w, h) 
{
  window.open(newURL, "newwin","toolbar=no, width="+w+",height="+h+",location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no");
};