window.onerror = null;
var tooltip_attr_name = "tooltip";

//DOM tooltip      originally written by paul sowden <paul@idontsmoke.co.uk>
/*window.onload = function(e){
        if (document.createElement) tooltip.d();
}*/
tooltip = {
        t: document.createElement("DIV"),
        c: null,
        g: false,
        m: function(e){
                if (tooltip.g){
                        //x = window.event ? event.clientX + document.body.scrollLeft : e.pageX;
                        //y = window.event ? event.clientY + document.body.scrollTop  : e.pageY;
                        oCanvas = document.getElementsByTagName(
                        (document.compatMode && document.compatMode == "CSS1Compat") ? "HTML" : "BODY"
                        )[0];
                        x = window.event ? event.clientX + oCanvas.scrollLeft : e.pageX; // !!!
                        y = window.event ? event.clientY + oCanvas.scrollTop : e.pageY; // !!!
                        tooltip.a(x, y);
                }
        },
        d: function(){
                tooltip.t.setAttribute("id", "tooltip");
                //tooltip.t.style.filter = "alpha(opacity=85)";
                document.body.appendChild(tooltip.t);
                a = document.all ? document.all : document.getElementsByTagName("*");
                aLength = a.length;
                for (var i = 0; i < aLength; i++){
                        if (a[i].getAttribute("title")){
                                a[i].setAttribute(tooltip_attr_name, a[i].getAttribute("title"));
                                if (a[i].getAttribute(tooltip_attr_name)){
                                        a[i].removeAttribute("title");
                                        if (a[i].getAttribute("alt") && a[i].complete) a[i].removeAttribute("alt");
                                        tooltip.l(a[i], "mouseover", tooltip.s);
                                        tooltip.l(a[i], "mouseout", tooltip.h);
                                }
                        }else if (a[i].getAttribute("alt") && a[i].complete){
                                a[i].setAttribute(tooltip_attr_name, a[i].getAttribute("alt"));
                                if (a[i].getAttribute(tooltip_attr_name)){
                                        a[i].removeAttribute("alt");
                                        tooltip.l(a[i], "mouseover", tooltip.s);
                                        tooltip.l(a[i], "mouseout", tooltip.h);
                                }
                                //alert(a[i].getAttribute(tooltip_attr_name));
                                //alert(a[i].outerHTML);
                        }
                }
                document.onmousemove = tooltip.m;
                window.onscroll = tooltip.h; // !!!
        },
        s: function(e){
                d = window.event ? window.event.srcElement : e.currentTarget;
                if (!d.getAttribute(tooltip_attr_name)) return; // !!!
                if (tooltip.t.firstChild) tooltip.t.removeChild(tooltip.t.firstChild); // !!!
                tooltip.t.appendChild(document.createTextNode(d.getAttribute(tooltip_attr_name)));
                tooltip.c = setTimeout("tooltip.t.style.visibility = 'visible';", 100);
                tooltip.g = true;
        },

        h: function(e){
                tooltip.t.style.visibility = "hidden";
                if (tooltip.t.firstChild) tooltip.t.removeChild(tooltip.t.firstChild);
                clearTimeout(tooltip.c);
                tooltip.g = false;
                tooltip.a(-99, -99);
        },

        l: function(o, e, a){
                if (o.addEventListener) o.addEventListener(e, a, false); // was true--Opera7 workaround!
                else if (o.attachEvent) o.attachEvent("on" + e, a);
                        else return null;
        },

        a: function(x, y){
                oCanvas = document.getElementsByTagName(
                (document.compatMode && document.compatMode == "CSS1Compat") ? "HTML" : "BODY"
                )[0];
                w_width = window.event ? oCanvas.clientWidth : window.innerWidth;
                t_width = window.event ? tooltip.t.clientWidth : tooltip.t.innerWidth;
                t_extra_width = 7; // padding + borderWidth;

                tooltip.t.style.top = y + 25 + "px";
                tooltip.t.style.left = x + 8 + "px";

                while (x + t_width + t_extra_width > w_width){
                        --x;
                        tooltip.t.style.left = x + "px";
                        t_width = window.event ? tooltip.t.clientWidth : tooltip.t.innerWidth;
                }
        }
}