function setupDescriptions() {
            var x = navigator.appVersion;
        y = x.substring(0,4);
        if (y>=4) setVariables();
    }

        var x,y,a,b,num, texto;

        function setVariables(){

                if (navigator.appName == "Netscape") {
                        h=".left=";
                        v=".top=";
                        dS="document.";
                        sD="";
                }
                else {
                        h=".pixelLeft=";
                        v=".pixelTop=";
                        dS="";
                        sD=".style";
                }
        }

        var isNav = (navigator.appName.indexOf("Netscape") !=-1);

        function popLayer(strTel){
                desc = "<TABLE border=0 width=180 cellpadding=1 cellspacing=0 bgcolor=#f00000><TR><TD><TABLE cellpadding=3 width=180  border=0  bgcolor=#FFCB7D><TR><TD class=textoLayer>";
                desc += " "  + strTel + "";
                desc += "</TD></TR></TABLE></TD></TR></TABLE>";
                if(isNav) {
                        document.object1.document.write(desc);
                        document.object1.document.close();
                        document.object1.left=x+y+25;
                        document.object1.top=y;
                } else {
                        document.all.object1.innerHTML=desc;
                       document.all.object1.style.pixelLeft=event.clientX+document.body.scrollLeft+10

                if (event.clientX+document.body.scrollLeft > 350) {
document.all.object1.style.pixelLeft=event.clientX+document.body.scrollLeft-150;
                } else {
document.all.object1.style.pixelTop=event.clientY+document.body.scrollTop+10;
                }
                    document.all.object1.style.pixelTop=event.clientY+document.body.scrollTop+10
                    document.all.object1.style.visibility="visible"

                }

        }
      
        function hideLayer(a){
                if(isNav) {
                        eval(document.object1.top=a);
                }
                else object1.innerHTML="";
        }

        function handlerMM(e){
                x = (isNav) ? e.pageX : event.clientX;
                y = (isNav) ? e.pageY : event.clientY;
        }

        if (isNav){
                document.captureEvents(Event.MOUSEMOVE);
        }

        document.onmousemove = handlerMM;