jQuery(function($){

      // Create variables (in this scope) to hold the API and image size
      var jcrop_api, boundx, boundy;
      
      $('#target').Jcrop({
        onChange: updatePreview,
        onSelect: updatePreview,
        aspectRatio: 1,
        onSelect: updateCoords
      },function(){
        // Use the API to get the real image size
        var bounds = this.getBounds();
        boundx = bounds[0];
        boundy = bounds[1];
        // Store the API in the jcrop_api variable
        jcrop_api = this;
      });

      function updatePreview(c)
      {
        if (parseInt(c.w) > 0)
        {
          var rx = 100 / c.w;
          var ry = 100 / c.h;

          $('#preview').css({
            width: Math.round(rx * boundx) + 'px',
            height: Math.round(ry * boundy) + 'px',
            marginLeft: '-' + Math.round(rx * c.x) + 'px',
            marginTop: '-' + Math.round(ry * c.y) + 'px'
          });
        }
      };

    });

			function updateCoords(c)
			{
				$('#x').val(c.x);
				$('#y').val(c.y);
				$('#w').val(c.w);
				$('#h').val(c.h);
			};

			function checkCoords()
			{
				if (parseInt($('#w').val())) return true;
				alert('Please select a crop region then press submit.');
				return false;
			};