JavaScript Tip of the Week for October 7, 1996: History Tracker | Source Code

/* This code is Copyright (c) 1996 Nick Heinle and Athenia Associates, 
 * all rights reserved. In order to receive the right to license this 
 * code for use on your site the original code must be copied from the
 * Web site webreference.com/javascript/. License is granted to user to 
 * reuse this code on their own Web site if and only if this entire copyright
 * notice is included. Code written by Nick Heinle of webreference.com.
 */
        bmDomain     = "webreference.com";  //domain where indexer works
        bmReal       = new Array();   
        bmName       = "jtotwbm";           //name of bms
        bmTotal      = 0;             
        bmTotalallow = 25;                  //total number of bm allowed
        bmReplayIP   = false;
        urlLast      = "";            
        
function createBm(ncur, ndesc, nurl) {
this.name = bmName + ncur;      
this.desc = ndesc;                             
this.url = nurl;                
this.comb = ndesc + "!~" + nurl; 
}
function loadBm() {
curTab = 0;
bmTotal = 0;
bmRealdone = false;
        for (curTab = 0; curTab  0) {
                if (bmReal[bmTotal - 1].url != "empty") {
                        with (document.bmForm.bmSelect) {
                        revBm = bmTotal - 1; 
                                for (i = bmTotal - 1; i >= 0; i--) options[i] = null; 
                                for (i = 0; i  0; i--) 
        document.bmForm.bmSelect.options[i] = null;
        with (document.bmForm.bmSelect) {
        options[0] = new Option ("You have No History as of Yet"); 
        options[0].selected = true;
        }
checkLoop();
}
function changePage(obj) {
replayStop();
i = obj.bmSelect.selectedIndex
bmPlace = (bmTotal - 1) - i;
        if (bmPlace != -1) opener.top.location = bmReal[bmPlace].url;
}
function checkPage() {
        if (top != null) {
        where = opener.location+ "";
                if (where.indexOf(bmDomain) != -1 && opener.location != null) {
                addBm(); 
                }
        }
        else window.close();
}
function checkLoop() {
check = setTimeout("checkLoop()", 500);
checkPage();
}

        with (document) {
        writeln('<FORM NAME = "bmForm">');
        writeln('<SELECT NAME = "bmSelect">');
                for (i = 0; i < bmTotalallow; i++)
                writeln('<OPTION>You have No History as of Yet');
        writeln('</SELECT><BR>');
        writeln('<INPUT TYPE = BUTTON VALUE = "Jump!" onClick = "changePage(this.form)">');
        writeln('<INPUT TYPE = BUTTON VALUE = "Clear" onClick = "clearBm()">');
        writeln('<INPUT TYPE = BUTTON VALUE = "Replay" onClick = "replayBm(this.form)">');
        writeln('<INPUT TYPE = BUTTON VALUE = "Stop" onClick = "replayStop()">');
        writeln('</FORM>');
        }
        for (i = bmTotalallow; i > 0; i--) 
        document.bmForm.bmSelect.options[i] = null;
        loadBm();
        showBm();
        checkLoop();

    var remoteWin = null;
    function remoteStart() {
    remoteWin = window.open('','htRemote',
    'toolbar=0,width=380,height=100,directories=0,status=0,scrollbars=0,menubar=0');
        if (remoteWin != null) {
                if (remoteWin.opener == null) {
                remoteWin.opener = self;
                }
        remoteWin.location.href = "tracker.html";
        }
    }