Увеличение изображение при наведении курсора в тизер выводе - Вопросы по CSS

<?php if ($this->checkPosition('media')) : ?>
<div class="pos-media <?php echo 'media-'.$view->params->get('template.items_media_alignment'); ?>">
	<div class="magnify"><div class="large"></div>
		<?php echo $this->renderPosition('media'); ?>
	</div>
</div>
<?php endif; ?>

Uncaught TypeError: Property '$' of object [object Object] is not a function hover.js:1 (anonymous function)

	<img class="small" src="http://thecodeplayer.com/uploads/media/iphone.jpg" width="200"/>
	
</div>

	jQuery(document).ready(function(){
                 jQuery('div.magnify').find('img').addClass('small');
	});

jQuery(document).ready(function(){

$(".large").css("background","url('" + $(".small").attr("src") + "') no-repeat");

jQuery(document).ready(function(){

	var native_width = 0;
	var native_height = 0;
  $(".large").css("background","url('" + $(".small").attr("src") + "') no-repeat");

	//Now the mousemove function
	$(".magnify").mousemove(function(e){
		//When the user hovers on the image, the script will first calculate
		//the native dimensions if they don't exist. Only after the native dimensions
		//are available, the script will show the zoomed version.
		if(!native_width && !native_height)
		{
			//This will create a new image object with the same image as that in .small
			//We cannot directly get the dimensions from .small because of the 
			//width specified to 200px in the HTML. To get the actual dimensions we have
			//created this image object.
			var image_object = new Image();
			image_object.src = $(".small").attr("src");
			
			//This code is wrapped in the .load function which is important.
			//width and height of the object would return 0 if accessed before 
			//the image gets loaded.
			native_width = image_object.width;
			native_height = image_object.height;
		}
		else
		{
			//x/y coordinates of the mouse
			//This is the position of .magnify with respect to the document.
			var magnify_offset = $(this).offset();
			//We will deduct the positions of .magnify from the mouse positions with
			//respect to the document to get the mouse positions with respect to the 
			//container(.magnify)
			var mx = e.pageX - magnify_offset.left;
			var my = e.pageY - magnify_offset.top;
			
			//Finally the code to fade out the glass if the mouse is outside the container
			if(mx < $(this).width() && my < $(this).height() && mx > 0 && my > 0)
			{
				$(".large").fadeIn(100);
			}
			else
			{
				$(".large").fadeOut(100);
			}
			if($(".large").is(":visible"))
			{
				//The background position of .large will be changed according to the position
				//of the mouse over the .small image. So we will get the ratio of the pixel
				//under the mouse pointer with respect to the image and use that to position the 
				//large image inside the magnifying glass
				var rx = Math.round(mx/$(".small").width()*native_width - $(".large").width()/2)*-1;
				var ry = Math.round(my/$(".small").height()*native_height - $(".large").height()/2)*-1;
				var bgp = rx + "px " + ry + "px";
				
				//Time to move the magnifying glass with the mouse
				var px = mx - $(".large").width()/2;
				var py = my - $(".large").height()/2;
				//Now the glass moves with the mouse
				//The logic is to deduct half of the glass's width and height from the 
				//mouse coordinates to place it with its center at the mouse coordinates
				
				//If you hover on the image now, you should see the magnifying glass in action
				$(".large").css({left: px, top: py, backgroundPosition: bgp});
			}
		}
	})
})

$(document).ready(function(){
    $('.magnify').find('img').addClass('small');
	var native_width = 0;
	var native_height = 0;
    $('.large').css('background','url('' + $('.small').attr('src') + '') no-repeat');
	$('.magnify').mousemove(function(e){
		if(!native_width && !native_height){
			var image_object = new Image();
			image_object.src = $('.small').attr('src');
			native_width = image_object.width;
			native_height = image_object.height;
		}
		else{
			var magnify_offset = $(this).offset();
			var mx = e.pageX - magnify_offset.left;
			var my = e.pageY - magnify_offset.top;
			if(mx < $(this).width() && my < $(this).height() && mx > 0 && my > 0){
				$('.large').fadeIn(100);
			}
			else{
				$('.large').fadeOut(100);
			}
			if($('.large').is(':visible')){
				var rx = Math.round(mx/$('.small').width()*native_width - $('.large').width()/2)*-1;
				var ry = Math.round(my/$('.small').height()*native_height - $('.large').height()/2)*-1;
				var bgp = rx + 'px ' + ry + 'px';
				var px = mx - $('.large').width()/2;
				var py = my - $('.large').height()/2;
				$('.large').css({left: px, top: py, backgroundPosition: bgp});
			}
		}
	});
});

$('.large').css('background','url('' + $('.small').attr('src') + '') no-repeat');

jQuery(document).ready(function(){
        jQuery('.magnify').find('img').addClass('small');
	var native_width = 0;
	var native_height = 0;
	jQuery(".large").css("background","url('" + jQuery(".small").attr("src") + "') no-repeat");
	jQuery(".magnify").mousemove(function(e){
		if(!native_width && !native_height){
			var image_object = new Image();
			image_object.src = jQuery(".small").attr("src");
			native_width = image_object.width;
			native_height = image_object.height;
		}
		else{
			var magnify_offset = jQuery(this).offset();
			var mx = e.pageX - magnify_offset.left;
			var my = e.pageY - magnify_offset.top;
			if(mx < jQuery(this).width() && my < jQuery(this).height() && mx > 0 && my > 0){
				jQuery(".large").fadeIn(100);
			}
			else{
				jQuery(".large").fadeOut(100);
			}
			if(jQuery(".large").is(":visible")){
				var rx = Math.round(mx/jQuery(".small").width()*native_width - jQuery(".large").width()/2)*-1;
				var ry = Math.round(my/jQuery(".small").height()*native_height - jQuery(".large").height()/2)*-1;
				var bgp = rx + "px " + ry + "px";
				var px = mx - jQuery(".large").width()/2;
				var py = my - jQuery(".large").height()/2;
				jQuery(".large").css({left: px, top: py, backgroundPosition: bgp});
			}
		}
	});
});

jQuery(document).ready(function($)
{
  $('img.zoomImg').zoom({magnify:1});
});