(function(a){a.ui=a.ui||{};var d=/left|center|right/,b="center",e=/top|center|bottom/,c="center",f=a.fn.position,g=a.fn.offset;a.fn.position=function(g){if(!g||!g.of)return f.apply(this,arguments);g=a.extend({},g);var j=a(g.of),m=(g.collision||"flip").split(" "),i=g.offset?g.offset.split(" "):[0,0],l,k,h;if(g.of.nodeType===9){l=j.width();k=j.height();h={top:0,left:0}}else if(g.of.scrollTo&&g.of.document){l=j.width();k=j.height();h={top:j.scrollTop(),left:j.scrollLeft()}}else if(g.of.preventDefault){g.at="left top";l=k=0;h={top:g.of.pageY,left:g.of.pageX}}else{l=j.outerWidth();k=j.outerHeight();h=j.offset()}a.each(["my","at"],function(){var a=(g[this]||"").split(" ");if(a.length===1)a=d.test(a[0])?a.concat([c]):e.test(a[0])?[b].concat(a):[b,c];a[0]=d.test(a[0])?a[0]:b;a[1]=e.test(a[1])?a[1]:c;g[this]=a});if(m.length===1)m[1]=m[0];i[0]=parseInt(i[0],10)||0;if(i.length===1)i[1]=i[0];i[1]=parseInt(i[1],10)||0;if(g.at[0]==="right")h.left+=l;else if(g.at[0]===b)h.left+=l/2;if(g.at[1]==="bottom")h.top+=k;else if(g.at[1]===c)h.top+=k/2;h.left+=i[0];h.top+=i[1];return this.each(function(){var e=a(this),j=e.outerWidth(),f=e.outerHeight(),d=a.extend({},h);if(g.my[0]==="right")d.left-=j;else if(g.my[0]===b)d.left-=j/2;if(g.my[1]==="bottom")d.top-=f;else if(g.my[1]===c)d.top-=f/2;d.left=parseInt(d.left);d.top=parseInt(d.top);a.each(["left","top"],function(b,c){a.ui.position[m[b]]&&a.ui.position[m[b]][c](d,{targetWidth:l,targetHeight:k,elemWidth:j,elemHeight:f,offset:i,my:g.my,at:g.at})});a.fn.bgiframe&&e.bgiframe();e.offset(a.extend(d,{using:g.using}))})};a.ui.position={fit:{left:function(b,e){var d=a(window),c=b.left+e.elemWidth-d.width()-d.scrollLeft();b.left=c>0?b.left-c:Math.max(0,b.left)},top:function(b,e){var d=a(window),c=b.top+e.elemHeight-d.height()-d.scrollTop();b.top=c>0?b.top-c:Math.max(0,b.top)}},flip:{left:function(c,b){if(b.at[0]==="center")return;var f=a(window),g=c.left+b.elemWidth-f.width()-f.scrollLeft(),d=b.my[0]==="left"?-b.elemWidth:b.my[0]==="right"?b.elemWidth:0,e=-2*b.offset[0];c.left+=c.left<0?d+b.targetWidth+e:g>0?d-b.targetWidth+e:0},top:function(c,b){if(b.at[1]==="center")return;var f=a(window),h=c.top+b.elemHeight-f.height()-f.scrollTop(),d=b.my[1]==="top"?-b.elemHeight:b.my[1]==="bottom"?b.elemHeight:0,g=b.at[1]==="top"?b.targetHeight:-b.targetHeight,e=-2*b.offset[1];c.top+=c.top<0?d+b.targetHeight+e:h>0?d+g+e:0}}};if(!a.offset.setOffset){a.offset.setOffset=function(b,c){if(/static/.test(a.curCSS(b,"position")))b.style.position="relative";var e=a(b),d=e.offset(),h=parseInt(a.curCSS(b,"top",true),10)||0,g=parseInt(a.curCSS(b,"left",true),10)||0,f={top:c.top-d.top+h,left:c.left-d.left+g};if("using"in c)c.using.call(b,f);else e.css(f)};a.fn.offset=function(b){var c=this[0];return!c||!c.ownerDocument?null:b?this.each(function(){a.offset.setOffset(this,b)}):g.call(this)}}})(jQuery);