// Copyright 2001 Idocs.com
// Distribute this script freely, but keep this notice in place

// backlink object initializer
function backlink() {
        this.text = 'Previous';
        this.type = 'link';
        this.write = backlink_write;
        this.form = true;
}


// write method
function backlink_write() {
        if (! window.history) return;
        if (window.history.length == 0)return;

        this.type = this.type.toLowerCase();
        if (this.type == 'button') {
                if (this.form)
                        document.write('<FORM>');
                document.write('<INPUT TYPE=BUTTON onClick="history.back(-1)" VALUE="', this.text, '"');
                if (this.otheratts) document.write(' ', this.otheratts);
                document.write('>');
                if (this.form)document.write('<\/FORM>');
        } else {
                document.write('<A HREF="javascript:history.back(-1)"');
                if (this.otheratts)
                        document.write(' ', this.otheratts);
                document.write('>');
                if (this.type == 'image' || this.type == 'img') {
                        document.write('<img SRC="', this.src, '" ALT="', this.text, '"');
                        if (this.width) document.write(' WIDTH=', this.width);
                        if (this.height) document.write(' HEIGHT=', this.height);
                        if (this.otherimgatts) document.write(' ', this.otherimgatts);
                        document.write(' BORDER=0 />');
                }
                else
                        document.write(this.text);
                document.write('<\/A>');
        }
}