jQuery.imgAreaSelect=function(img,options){var $area=jQuery('<div></div>'),$border1=jQuery('<div></div>'),$border2=jQuery('<div></div>'),imgOfs,imgWidth,imgHeight,startX,startY,moveX,moveY,resizeMargin=10,resize=[],V=0,H=1,d,aspectRatio,x1,x2,y1,y2,x,y,selection={x1:0,y1:0,x2:0,y2:0,width:0,height:0};var $a=$area.add($border1).add($border2);function areaMouseMove(event){x=event.pageX-selection.x1-imgOfs.left;y=event.pageY-selection.y1-imgOfs.top;resize=[];if(options.resizable){if(y<=resizeMargin)resize[V]='n';else if(y>=selection.height-resizeMargin)resize[V]='s';if(x<=resizeMargin)resize[H]='w';else if(x>=selection.width-resizeMargin)resize[H]='e'}$border2.css('cursor',resize.length?resize.join('')+'-resize':options.movable?'move':'')}function areaMouseDown(event){if(event.which!=1)return false;if(options.resizable&&resize.length>0){$('body').css('cursor',resize.join('')+'-resize');x1=(resize[H]=='w'?selection.x2:selection.x1)+imgOfs.left;y1=(resize[V]=='n'?selection.y2:selection.y1)+imgOfs.top;jQuery(document).mousemove(selectingMouseMove);$border2.unbind('mousemove',areaMouseMove);jQuery(document).one('mouseup',function(){resize=[];$('body').css('cursor','');if(options.autoHide)$a.hide();options.onSelectEnd(img,selection);jQuery(document).unbind('mousemove',selectingMouseMove);$border2.mousemove(areaMouseMove)})}else if(options.movable){moveX=selection.x1+imgOfs.left;moveY=selection.y1+imgOfs.top;startX=event.pageX;startY=event.pageY;jQuery(document).mousemove(movingMouseMove).one('mouseup',function(){options.onSelectEnd(img,selection);jQuery(document).unbind('mousemove',movingMouseMove)})}else jQuery(img).mousedown(event);return false}function aspectRatioXY(){x2=Math.max(imgOfs.left,Math.min(imgOfs.left+imgWidth,x1+Math.abs(y2-y1)*aspectRatio*(x2>x1?1:-1)));y2=Math.round(Math.max(imgOfs.top,Math.min(imgOfs.top+imgHeight,y1+Math.abs(x2-x1)/aspectRatio*(y2>y1?1:-1))));x2=Math.round(x2)}function aspectRatioYX(){y2=Math.max(imgOfs.top,Math.min(imgOfs.top+imgHeight,y1+Math.abs(x2-x1)/aspectRatio*(y2>y1?1:-1)));x2=Math.round(Math.max(imgOfs.left,Math.min(imgOfs.left+imgWidth,x1+Math.abs(y2-y1)*aspectRatio*(x2>x1?1:-1))));y2=Math.round(y2)}function selectingMouseMove(event){x2=!resize.length||resize[H]||aspectRatio?event.pageX:selection.x2+imgOfs.left;y2=!resize.length||resize[V]||aspectRatio?event.pageY:selection.y2+imgOfs.top;if(options.minWidth&&Math.abs(x2-x1)<options.minWidth){x2=x1-options.minWidth*(x2<x1?1:-1);if(x2<imgOfs.left)x1=imgOfs.left+options.minWidth;else if(x2>imgOfs.left+imgWidth)x1=imgOfs.left+imgWidth-options.minWidth}if(options.minHeight&&Math.abs(y2-y1)<options.minHeight){y2=y1-options.minHeight*(y2<y1?1:-1);if(y2<imgOfs.top)y1=imgOfs.top+options.minHeight;else if(y2>imgOfs.top+imgHeight)y1=imgOfs.top+imgHeight-options.minHeight}x2=Math.max(imgOfs.left,Math.min(x2,imgOfs.left+imgWidth));y2=Math.max(imgOfs.top,Math.min(y2,imgOfs.top+imgHeight));if(aspectRatio)if(Math.abs(x2-x1)/aspectRatio>Math.abs(y2-y1))aspectRatioYX();else aspectRatioXY();if(options.maxWidth&&Math.abs(x2-x1)>options.maxWidth){x2=x1-options.maxWidth*(x2<x1?1:-1);if(aspectRatio)aspectRatioYX()}if(options.maxHeight&&Math.abs(y2-y1)>options.maxHeight){y2=y1-options.maxHeight*(y2<y1?1:-1);if(aspectRatio)aspectRatioXY()}selection.x1=Math.min(x1,x2)-imgOfs.left;selection.x2=Math.max(x1,x2)-imgOfs.left;selection.y1=Math.min(y1,y2)-imgOfs.top;selection.y2=Math.max(y1,y2)-imgOfs.top;selection.width=Math.abs(x2-x1);selection.height=Math.abs(y2-y1);$a.css({left:(selection.x1+imgOfs.left)+'px',top:(selection.y1+imgOfs.top)+'px',width:Math.max(selection.width-options.borderWidth*2,0)+'px',height:Math.max(selection.height-options.borderWidth*2,0)+'px'});options.onSelectChange(img,selection);return false}function movingMouseMove(event){x1=Math.max(imgOfs.left,Math.min(moveX+event.pageX-startX,imgOfs.left+imgWidth-selection.width));y1=Math.max(imgOfs.top,Math.min(moveY+event.pageY-startY,imgOfs.top+imgHeight-selection.height));x2=x1+selection.width;y2=y1+selection.height;selection.x1=x1-imgOfs.left;selection.y1=y1-imgOfs.top;selection.x2=x2-imgOfs.left;selection.y2=y2-imgOfs.top;$a.css({left:x1+'px',top:y1+'px',width:Math.max(x2-x1-options.borderWidth*2,0)+'px',height:Math.max(y2-y1-options.borderWidth*2,0)+'px'});options.onSelectChange(img,selection);event.preventDefault();return false}this.setOptions=function(newOptions){options=jQuery.extend(options,newOptions);if(newOptions.x1!=null){x1=(selection.x1=newOptions.x1)+imgOfs.left;y1=(selection.y1=newOptions.y1)+imgOfs.top;x2=(selection.x2=newOptions.x2)+imgOfs.left;y2=(selection.y2=newOptions.y2)+imgOfs.top;selection.width=x2-x1;selection.height=y2-y1;$a.show().css({left:x1+'px',top:y1+'px',width:Math.max(x2-x1-options.borderWidth*2,0)+'px',height:Math.max(y2-y1-options.borderWidth*2,0)+'px'});options.onSelectChange(img,selection)}if(newOptions.hide)$a.hide();else if(newOptions.show)$a.show();$a.css({borderWidth:options.borderWidth+'px'});$area.css({backgroundColor:options.selectionColor,opacity:options.selectionOpacity});$border1.css({borderStyle:'solid',borderColor:options.borderColor1});$border2.css({borderStyle:'dashed',borderColor:options.borderColor2});aspectRatio=options.aspectRatio&&(d=options.aspectRatio.split(/:/))?d[0]/d[1]:null};imgWidth=jQuery(img).width();imgHeight=jQuery(img).height();imgOfs=jQuery(img).offset();if(jQuery.browser.msie)jQuery(img).attr('unselectable','on');$a.css({display:'none',position:'absolute',lineHeight:'0px',fontSize:'0px'});$area.css({borderStyle:'solid'});jQuery('body').append($a);initOptions={borderColor1:'#000',borderColor2:'#fff',borderWidth:1,movable:true,resizable:true,selectionColor:'#fff',selectionOpacity:0.2,onSelectStart:function(){},onSelectChange:function(){},onSelectEnd:function(){}};options=jQuery.extend(initOptions,options);this.setOptions(options);if(options.resizable||options.movable)$a.mousemove(areaMouseMove).mousedown(areaMouseDown);jQuery(img).mousedown(function(event){if(event.which!=1)return false;startX=x1=event.pageX;startY=y1=event.pageY;resize=[];$a.show().css({width:'0px',height:'0px',left:x1,top:y1});jQuery(document).mousemove(selectingMouseMove);$border2.unbind('mousemove',areaMouseMove);selection.x1=selection.x2=x1-imgOfs.left;selection.y1=selection.y2=y1-imgOfs.top;options.onSelectStart(img,selection);jQuery(document).one('mouseup',function(){if(options.autoHide)$a.hide();options.onSelectEnd(img,selection);jQuery(document).unbind('mousemove',selectingMouseMove);$border2.mousemove(areaMouseMove)});return false})};jQuery.fn.imgAreaSelect=function(options){options=options||{};this.each(function(){if(jQuery(this).data('imgAreaSelect'))jQuery(this).data('imgAreaSelect').setOptions(options);else jQuery(this).data('imgAreaSelect',new jQuery.imgAreaSelect(this,options))});return this};