function reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.pgW=innerWidth; document.pgH=innerHeight; onresize=reloadPage; }}
  else if (innerWidth!=document.pgW || innerHeight!=document.pgH) location.reload();
}
reloadPage(true);

function showimage() {
   if (!document.images)
   return
   document.images.fileicon.src='images/speakers/' + document.instfile.i_inspict.options[document.instfile.i_inspict.selectedIndex].value;
}

function openlist(url){
   var W = (screen.width - 360);
	window.open (url,"Seminars","toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=no,copyhistory=no,width=350,height=400,left="+W+"");
}

function openwindow(url, height_window){
   var W = (screen.width - 410);
	window.open (url,"Help","toolbar=no,location=no,directories=no,status=no,scrollbars=no,resizable=no,copyhistory=no,width=400,height="+height_window+",left="+W+"");
}


function openpopup(url, width_pop, height_pop) {
   var W = (screen.width - width_pop) / 2;
   var H = (screen.height - height_pop) / 2;
   window.open(url,"ClassDetails","width="+width_pop+",height="+height_pop+",top="+H+",left="+W+",resizable=no,scrollbars=yes");
}

function definepopup(url, width_pop, height_pop, resize_pop, scroll_pop) {
   var W = (screen.width - width_pop) / 2;
   var H = (screen.height - height_pop) / 2;
   window.open(url,"Links","width="+width_pop+",height="+height_pop+",top="+H+",left="+W+",resizable="+resize_pop+",scrollbars="+scroll_pop+"");
}