[jQuery] Re: button is null

[sergiomedinag]

This is the code:

toolTip: function ($this){
            if(!$this.is("input:text, input:file, select, textarea"))
return false;
            $this.bind("mouseenter",
                function(e){
                    e = e || window.event;
                    if($("#"+$.fn.validator.init.toolTipId).length>0)//
Removes tooltips if there is any
                        $("#"+$.fn.validator.init.toolTipId).remove();
                    classes = $this.attr("class");
                    isReq = $.fn.validator.init.regExpReq.test
(classes);
                    validationClass = classes.match
($.fn.validator.init.regExpClass);
                    fieldValid = new RegExp("\\b"+
$.fn.validator.init.validClass+"\\b");
                    if(!isReq && validationClass == null ||
fieldValid.test(classes)) return false; //abort tooltip if there is no
class associated.
                    msg = isReq ? "<b  style=\"color:#F10\">"+
$.fn.validator.init.reqMsg+"</b><br />" : "";
                    if(validationClass!=null){
                        a = $.fn.validator.init.classValidation
[validationClass][1].split(",");
                        msg1 = "<ul>";
                        for(x = 0; x<a.length;x++)
                            msg1 +="<li>"+a[x]+"</li>";
                        msg1 += "</ul>";
                        msg +="<b>Examples of accepted:</b><br /
>"+msg1;
                    }
                    tool = "<div id=\""+$.fn.validator.init.toolTipId
+"\" class=\"validatorToolTip\">"+msg+"</div>";
                    $(tool).css({
                            width:"170px",height:"auto",
                            /*padding:".3em",*/
backgroundColor:"#fffcd1",
                            opacity:"0.8",color : "#444",
                            position: "absolute",zIndex : "100",
                            display:"none",border:"1px solid #444"
                        }).appendTo("body");
                    inX = e.pageX || e.clientX -
document.body.scrollLeft;
                    inY = e.pageY || e.clientY -
document.body.scrollTop;
                    toolY = inY > $(window).height() ? parseInt(inY-10
- $("#"+$.fn.validator.init.toolTipId).height()) : inY - 10;
                    toolX = parseInt($("#"+
$.fn.validator.init.toolTipId).width()+ inX + 10) > $(window).width
() ? parseInt(inX-$("#"+$.fn.validator.init.toolTipId).width()-10) :
parseInt(inX+10);
                    $("#"+$.fn.validator.init.toolTipId).css({top :
toolY,left: toolX}).fadeIn(150).addClass
($.fn.validator.init.options.customClass);
                    return true;
                }).bind("mousemove",
                function(e){
                    e = e || window.event;
                    inX = e.pageX || e.clientX -
document.body.scrollLeft;
                    inY = e.pageY || e.clientY -
document.body.scrollTop;
                    toolY = inY > $(window).height() ? parseInt(inY -
10 -$("#"+$.fn.validator.init.toolTipId).height()) : inY - 10;
                    toolX = parseInt($("#"+
$.fn.validator.init.toolTipId).width()+ inX + 10) > $(window).width
() ? parseInt(inX-$("#"+$.fn.validator.init.toolTipId).width()-10) :
parseInt(inX+10);
                    $("#"+$.fn.validator.init.toolTipId).css({top :
toolY,left: toolX});
                }
            ).bind("mouseleave",
                function(){
                    $("#"+$.fn.validator.init.toolTipId).fadeOut
(100,function(){$(this).remove();});
                }
            );
            return true;
        },

And in the jQuery-1.2.6 (line 2405) script:

var withinElement = function(event, elem) {
   // Check if mouse(over|out) are still within the same parent
element
   var parent = event.relatedTarget;
   // Traverse up the tree
   while ( parent && parent != elem ) try { parent =
parent.parentNode; } catch(error) { parent = elem; }
   // Return true if we actually just moused on to a sub-element
   return parent == elem;
};

What could it be?

Thanks.