//     Begin

ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

function init() {
          if (ns4) block = document.ltitle
          if (ie4) block = ltitle.style
}

//navigator.appName == "Netscape")

function setPostn() {
if (ns4) {
    a=".top=";
    adoc="document.";
    docs="";
    b="window.pageYOffset";
    }
else {
    a=".pixelTop=";
    adoc="";
    docs=".style";
    b="document.body.scrollTop";
   }
}
function checkPostn() {
    object="obPic";
    c=eval(b);
    eval(adoc+object+docs+a+c);
    setTimeout("checkPostn()",1);
}