jQuery.fn.loadthumb=function(options){options=$.extend({src:"",imgId:"myImgs",parentId:"CRviewer"},options);var _self=this;_self.hide();var img=new Image();$(img).load(function(){imgDem={};imgDem.w=img.width;imgDem.h=img.height;imgDem=$.imgResize({"w":$("#"+options.parentId).width(),"h":$("#"+options.parentId).height()},{"w":imgDem.w,"h":imgDem.h});var imgMargins=$.imgCenter({"w":$("#"+options.parentId).width(),"h":$("#"+options.parentId).height()},{"w":imgDem.w,"h":imgDem.h});_self.attr("src",options.src);_self.fadeIn("slow");}).attr("src",options.src);return _self;}
jQuery.imgResize=function(parentDem,imgDem){if(imgDem.w>0&&imgDem.h>0){var rate=(parentDem.w/imgDem.w<parentDem.h/imgDem.h)?parentDem.w/imgDem.w:parentDem.h/imgDem.h;if(rate<=1){imgDem.w=imgDem.w*rate;imgDem.h=imgDem.h*rate;}else{imgDem.w=imgDem.w;imgDem.h=imgDem.h;}}
return imgDem;}
jQuery.imgCenter=function(parentDem,imgDem){var left=(parentDem.w-imgDem.w)*0.5;var top=(parentDem.h-imgDem.h)*0.5;return{"l":left,"t":top};}