diff --git a/client/galaxy/scripts/mvc/ui/ui-slider.js b/client/galaxy/scripts/mvc/ui/ui-slider.js
index 2e24652f190..8038db1be53 100644
--- a/client/galaxy/scripts/mvc/ui/ui-slider.js
+++ b/client/galaxy/scripts/mvc/ui/ui-slider.js
@@ -1,104 +1,104 @@
 define([ 'utils/utils' ], function( Utils ) {
-var View = Backbone.View.extend({
-    initialize : function( options ) {
-        var self = this;
-        this.model = options && options.model || new Backbone.Model({
-            id      : Utils.uid(),
-            min     : null,
-            max     : null,
-            step    : null,
-            precise : false,
-            split   : 10000
-        }).set( options );
+    var View = Backbone.View.extend({
+        initialize : function( options ) {
+            var self = this;
+            this.model = options && options.model || new Backbone.Model({
+                id      : Utils.uid(),
+                min     : null,
+                max     : null,
+                step    : null,
+                precise : false,
+                split   : 10000
+            }).set( options );
 
-        // create new element
-        this.setElement( this._template( this.model.attributes ) );
-        this.$text          = this.$( '#text' );
-        this.$slider        = this.$( '#slider' );
-        this.$slider_text   = this.$( '.ui-form-slider-text' );
+            // create new element
+            this.setElement( this._template( this.model.attributes ) );
+            this.$text          = this.$( '#text' );
+            this.$slider        = this.$( '#slider' );
+            this.$slider_text   = this.$( '.ui-form-slider-text' );
 
-        // set initial value
-        this.options.value !== undefined && ( this.value( this.options.value ) );
+            // set initial value
+            this.options.value !== undefined && ( this.value( this.options.value ) );
 
-        // add text field event
-        var pressed = [];
-        this.$text.on( 'change', function () {
-            self.value( $( this ).val() );
-        }).on( 'keyup', function( e ) {
-            pressed[e.which] = false;
-            self.options.onchange && self.options.onchange( $( this ).val() );
-        }).on( 'keydown', function ( e ) {
-            var v = e.which;
-            pressed[ v ] = true;
-            if ( self.options.is_workflow && pressed[ 16 ] && v == 52 ) {
-                self.value( '$' )
-                event.preventDefault();
-            } else if (!( v == 8 || v == 9 || v == 13 || v == 37 || v == 39 || ( v >= 48 && v <= 57 && !pressed[ 16 ] ) || ( v >= 96 && v <= 105 )
-                || ( ( v == 190 || v == 110 ) && $( this ).val().indexOf( '.' ) == -1 && self.options.precise )
-                || ( ( v == 189 || v == 109 ) && $( this ).val().indexOf( '-' ) == -1 )
-                || self._isParameter( $( this ).val() )
-                || pressed[ 91 ] || pressed[ 17 ] ) ) {
-                event.preventDefault();
-            }
-        });
-
-        this.listenTo( this.model, 'change', this.render, this );
-        this.render();
-    },
-
-    render: function() {
-        var options = this.model.attributes;
-        var useslider = options.max !== null && options.min !== null && options.max > options.min;
-        var step = options.step;
-        if ( !step ) {
-            if ( options.precise && useslider ) {
-                step = ( options.max - options.min ) / options.split;
-            } else {
-                step = 1.0;
-            }
-        }
-        if ( useslider ) {
-            this.$slider.show();
-            this.$slider.slider( { min: options.min, max: options.max, step: step } );
-            this.$slider.on( 'slide', function ( event, ui ) {
-                self.value( ui.value );
+            // add text field event
+            var pressed = [];
+            this.$text.on( 'change', function () {
+                self.value( $( this ).val() );
+            }).on( 'keyup', function( e ) {
+                pressed[e.which] = false;
+                self.options.onchange && self.options.onchange( $( this ).val() );
+            }).on( 'keydown', function ( e ) {
+                var v = e.which;
+                pressed[ v ] = true;
+                if ( self.options.is_workflow && pressed[ 16 ] && v == 52 ) {
+                    self.value( '$' )
+                    event.preventDefault();
+                } else if (!( v == 8 || v == 9 || v == 13 || v == 37 || v == 39 || ( v >= 48 && v <= 57 && !pressed[ 16 ] ) || ( v >= 96 && v <= 105 )
+                    || ( ( v == 190 || v == 110 ) && $( this ).val().indexOf( '.' ) == -1 && self.options.precise )
+                    || ( ( v == 189 || v == 109 ) && $( this ).val().indexOf( '-' ) == -1 )
+                    || self._isParameter( $( this ).val() )
+                    || pressed[ 91 ] || pressed[ 17 ] ) ) {
+                    event.preventDefault();
+                }
             });
-        } else {
-            this.$slider.hide();
-            this.$slide_text.css( 'width', '100%' );
-        }
-    },
 
-    /** Set and Return the current value */
-    value : function ( new_val ) {
-        if ( new_val !== undefined ) {
-            if ( new_val !== null && new_val !== '' && !this._isParameter( new_val ) ) {
-                isNaN( new_val ) && ( new_val = 0 );
-                this.options.max !== null && ( new_val = Math.min( new_val, this.options.max ) );
-                this.options.min !== null && ( new_val = Math.max( new_val, this.options.min ) );
+            this.listenTo( this.model, 'change', this.render, this );
+            this.render();
+        },
+
+        render: function() {
+            var options = this.model.attributes;
+            var useslider = options.max !== null && options.min !== null && options.max > options.min;
+            var step = options.step;
+            if ( !step ) {
+                if ( options.precise && useslider ) {
+                    step = ( options.max - options.min ) / options.split;
+                } else {
+                    step = 1.0;
+                }
             }
-            this.$slider && this.$slider.slider( 'value', new_val );
-            this.$text.val( new_val );
-            this.options.onchange && this.options.onchange( new_val );
+            if ( useslider ) {
+                this.$slider.show();
+                this.$slider.slider( { min: options.min, max: options.max, step: step } );
+                this.$slider.on( 'slide', function ( event, ui ) {
+                    self.value( ui.value );
+                });
+            } else {
+                this.$slider.hide();
+                this.$slide_text.css( 'width', '100%' );
+            }
+        },
+
+        /** Set and Return the current value */
+        value : function ( new_val ) {
+            if ( new_val !== undefined ) {
+                if ( new_val !== null && new_val !== '' && !this._isParameter( new_val ) ) {
+                    isNaN( new_val ) && ( new_val = 0 );
+                    this.options.max !== null && ( new_val = Math.min( new_val, this.options.max ) );
+                    this.options.min !== null && ( new_val = Math.max( new_val, this.options.min ) );
+                }
+                this.$slider && this.$slider.slider( 'value', new_val );
+                this.$text.val( new_val );
+                this.options.onchange && this.options.onchange( new_val );
+            }
+            return this.$text.val();
+        },
+
+        /** Return true if the field contains a workflow parameter i.e. $('name') */
+        _isParameter: function( value ) {
+            return this.options.is_workflow && String( value ).substring( 0, 1 ) === '$';
+        },
+
+        /** Slider template */
+        _template: function( options ) {
+            return  '<div id="' + options.id + '" class="ui-form-slider">' +
+                        '<input id="text" type="text" class="ui-form-slider-text"/>' +
+                        '<div id="slider" class="ui-form-slider-element"/>' +
+                    '</div>';
         }
-        return this.$text.val();
-    },
+    });
 
-    /** Return true if the field contains a workflow parameter i.e. $('name') */
-    _isParameter: function( value ) {
-        return this.options.is_workflow && String( value ).substring( 0, 1 ) === '$';
-    },
-
-    /** Slider template */
-    _template: function( options ) {
-        return  '<div id="' + options.id + '" class="ui-form-slider">' +
-                    '<input id="text" type="text" class="ui-form-slider-text"/>' +
-                    '<div id="slider" class="ui-form-slider-element"/>' +
-                '</div>';
-    }
-});
-
-return {
-    View : View
-};
+    return {
+        View : View
+    };
 });
\ No newline at end of file