how arrangement ballon tooltip rodent stops

[edit]
so i used javascript tooltips suggested below. i got tips arrangement stop bury move. wholly problem works i this:

document.onmousemove = (function() {
    var onmousestop = function() {
        tip('click hunt here');
        document.getelementbyid('mydiv').onmousemove = function() {
        untip();
    };
    }, thread;

    relapse function() {
        cleartimeout(thread);
        thread = settimeout(onmousestop, 1500);
    };
})();

but i wish duty wholly ask specific div i change initial line "document.getelementbyid('mydiv').onmousemove = (function() {" i javascript blunder document.getelementbyid('mydiv') zero am i missing....??

[/edit]

i wish arrangement balloon impression summary users rodent stops an component some-more contend 1.5 seconds. following pierce rodent i bury balloon. i am perplexing javascript formula i found posted out wild. here formula i am controlling detect rodent stopped:

document.onmousemove = (function() {
    var onmousestop = function() {
        //code arrangement ballon
        };
    }, thread;

    relapse function() {
        cleartimeout(thread);
        thread = settimeout(onmousestop, 1500);
    };
})();

so i have twin questions. one, does anyone have permitted lightweight javascript balloon arrangement during cursor location. two, detect rodent stopped formula works ok nonetheless i am stumped detect rodent started relocating again bury balloon. thanks...