javascript - Use jQuery set .css RIGHT if #foo + offset left is greater than page width -

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ok, trying use jquery innerwidth() of element #preview. want create conditional says if x offset left + #preview width greater page width, give style right: z z = #preview width + xoffset.

i apologize code below mess , syntax .css ("right", (rightfloat + xoffset) + "px") (line 125) off, that's part of problem.

<script>      $(document).ready(function(){      //append "gallery" class items "popup" class     imagepreview();     $(".popup").addclass("gallery"); });      //the overlay or pop-up effect this.imagepreview = function() { /* config */      xoffset = 40;     yoffset = 40;      // these 2 variable determine popup's distance cursor     // might want adjust right result     /* end config */     $("a.preview").click(function(e) {         return false;     });     $("a.preview").hover(function(e) {         this.t = this.title;         this.title = "";         var c = (this.t != "") ? "<br/>" + this.t : "";         var rightfloat = e.pagex + ("#preview").innerwidth;         $("body").append("<p id='preview'><img src='" + this.href + "' alt='image preview' />" + c + "</p>");         $("#preview").hide().css("top", (e.pagey - yoffset) + "px").css("left", (e.pagex + xoffset) + "px").fadein("2000");         while ((left + 400) > window.innerwidth) {.css("right", (rightfloat + xoffset) + "px")         }     }, function() {         this.title = this.t;         $("#preview").remove();     });     $("a.preview").mousemove(function(e) {         var top = e.pagey - yoffset;         var left = e.pagex + xoffset;         var rightfloat = e.pagex + ("#preview").innerwidth;         //flips image if gets close right side         while ((left + 400) > window.innerwidth) {.css("right", +(rightflaot + xoffset) + "px")         }         $("#preview").css("top", top + "px").css("left", left + "px");     }); };   </script>

try using http://api.jquery.com/offset/

if($('#preview').offset().right<0){    var right = parseint($(window).width()) - e.pagex + xoffset;    $("#preview").css("top", top + "px").css("right", right + "px"); }else{    var left = e.pagex + xoffset;    $("#preview").css("top", top + "px").css("left", left + "px"); }

i made these fixes because couldn't code work in jsfiddle: var xoffset = 40; var yoffset = 40; $("a.preview").bind('mouseover',function(e){ var rightfloat = parsefloat(e.pagex)+$("#preview").innerwidth();
var ptop = parsefloat(e.pagey) - yoffset; var pleft = parsefloat(e.pagex) + xoffset; $("#preview").css({"top":ptop + "px","left":pleft + "px"}); });

there's fixes top half have no idea you're trying bottom part (with while loop). can explain functionality want?


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