/*----------------------------- img_load -----------------------------*/
(function($){
	var 
	defaults = {
		flagErrorAddCntImg:true, 
		//callback
		funcImgLoadErrorCallback:function(lenImg, cntImg, eleImgLoaded, eleImgError){}, 
		funcImgLoadFinishCallback:function(lenImg, eleImgLoaded){} 
	};
	$.fn.imgLoad = function(options){
		var 
		configs = {}, 
		el = this, 
		lenEl = el.length, 
		funcInit = function(){
			configs = $.extend({}, defaults, options);
			funcCustomEvents();
			el.funcLoad();
		}, 
		funcCustomEvents = function(){
			el.on({
				'imgLoad.load':function(e, args){
					configs = $.extend({}, configs, args);
					el.funcLoad();
				} 
			});
		};
		if(lenEl === 0)return this;
		if(lenEl > 1){
			el.each(function(){$(this).imgLoad(options)});
			return this;
		}
		el.funcLoad = function(){
			var 
			cntImg = 0, 
			eleChildImg = el.find('img'), 
			eleImgLoaded = [], 
			lenChildImg = $(eleChildImg).length;
			if(lenChildImg === 0){
				configs.funcImgLoadFinishCallback(lenChildImg, eleImgLoaded);
				return true;
			}
			$(eleChildImg).each(function(){
				var 
				eleImg = $('<img>');
				eleImg.on({
					'error':function(){
						configs.funcImgLoadErrorCallback(lenChildImg, cntImg, eleImgLoaded, $(this));
						if(configs.flagErrorAddCntImg){
							if(lenChildImg === ++cntImg)
							configs.funcImgLoadFinishCallback(lenChildImg, eleImgLoaded);
						}
					}, 
					'load':function(){
						eleImgLoaded.push($(this));
						if(lenChildImg === ++cntImg)
						configs.funcImgLoadFinishCallback(lenChildImg, eleImgLoaded);
					} 
				});
				eleImg.attr('src', $(this).attr('src'));
			});
		};
		funcInit();
	};
})(jQuery);
/*----------------------------- /img_load -----------------------------*/