var l = 0, t = 0
        var IE = document.all?true:false
        document.onmousemove = getMouseXY
        var ns_tt = document.createElement("div")
        function getMouseXY(e) {
            if (IE) {
                l = event.clientX + document.body.scrollLeft
                t = event.clientY + document.body.scrollTop
            }
            else {
                l = e.pageX
                t = e.pageY
            }  
            ns_tt.style.left = l + "px"
            ns_tt.style.top = t + "px"
            return true
        }   
        function AddTT(tt_text){
            document.body.appendChild(ns_tt)
            ns_tt.id = "ns_tt"
            ns_tt.innerHTML = tt_text
        }   
        function RemoveTT() {
            document.body.removeChild(document.getElementById("ns_tt"))
        }