if (window.XMLHttpRequest) {
   HttpHandler = new XMLHttpRequest();
   } else if (window.ActiveXObject) {
       HttpHandler = new ActiveXObject("Microsoft.XMLHTTP");
   }

var httpbusy = false;

function getData( RemoteSrc, DivId ) {
  if ( httpbusy ) {
        setTimeout( "getData( \""+RemoteSrc+"\", \""+DivId+"\" )", 700 );
        return;
  }
  httpbusy = true;

  if ( HttpHandler ) {
        var TargetDiv = document.getElementById( DivId );
        HttpHandler.open( "GET", RemoteSrc );

        HttpHandler.onreadystatechange = function() {
                if ( HttpHandler.readyState == 4 ) {
                        if ( TargetDiv.nodeName == "TEXTAREA" ) {
                                TargetDiv.value = HttpHandler.responseText;
                        } else {
                                TargetDiv.innerHTML = HttpHandler.responseText;
                        }

                        httpbusy = false;
                }
        } //function()

        HttpHandler.send(null);
  } //if HttpHandler
} //getData()

function txt( filename ) {
	getData( 'plain/'+filename+'.htm', 'content' );
	activeIssue( 0 );
}