// JavaScript Document
$.fn.preloader = function(options){
	
	var defaults = {
		 delay:200,
		 preload_parent:"a",
		 check_timer:300,
		 ondone:function(){ },
		 oneachload:function(image){  },
		 fadein:500 
		};
	// variables declaration and precaching images and parent container
	 var options = $.extend(defaults, options),
	 root = $(this) , images = root.find("img").css({"visibility":"hidden",opacity:0}) ,  timer ,  counter = 0, i=0 , checkFlag = [] , delaySum = options.delay ,
	 init = function(){
		timer = setInterval(function(){
			if(counter>=checkFlag.length)
			{
			clearInterval(timer);
			options.ondone();
			return;
			}
			for(i=0;i<images.length;i++)
			{
				if(images[i].complete==true)
				{
					if(checkFlag[i]==false)
					{
						checkFlag[i] = true;
						options.oneachload(images[i]);
						counter++;
						delaySum = delaySum + options.delay;
					}
					$(images[i]).css("visibility","visible").delay(delaySum).animate({opacity:1},options.fadein,
					function(){ $(this).parent().removeClass("preloader");   });
					
				}
			}
			},options.check_timer) 
		 } ;
	images.each(function(){
		if($(this).parent(options.preload_parent).length==0)
		$(this).wrap("<a class='preloader' />");
		else
		$(this).parent().addClass("preloader");
		checkFlag[i++] = false;
		}); 
	images = $.makeArray(images); 
	init();
}