Improve grammar in some comments.

third_party/WebKit/LayoutTests/svg/carto.net/resources/comboBox.js

 /*
 Scripts to create interactive comboboxes in SVG using ECMA script
 Copyright (C) <2006>  <Andreas Neumann>
 Version 1.2.1, 2006-10-03
 neumann@karto.baug.ethz.ch
 http://www.carto.net/
 http://www.carto.net/neumann/
 
 Credits:
 
@@ skipping 100 matching lines @@
         this.triangleFourth = Math.round(this.cellHeight / 4); //this is only used internally
         this.textPadding = textPadding; //this is relative to the left of the cell
         this.textPaddingVertical = this.cellHeight - (this.cellHeight - this.textStyles["font-size"]) * 0.7; //this is relative to the top of the cell
         this.scrollerMinHeight = this.cellHeight * 0.5; //minimal height of the scroller rect
 
         //status variables
         this.scrollStep = 0; //y-value to go for one element
         this.scrollerHeight = 0; //height of dragable scroller bar
         this.scrollActive = false; //determines if scrolling per up/down button is active
         this.panY = false; //stores the y value of event
-        this.scrollCumulus = 0; //if value is less then a scrollstep we need to accumulate scroll values
+        this.scrollCumulus = 0; //if value is less than a scrollstep we need to accumulate scroll values
         this.scrollDir = ""; //later holds "up" and "down"
         this.exists = true; //true means it exists, gets value false if method "removeSelectionList" is called
         this.mouseDownStatus = false; //status that specifies if mouse is down or up on individual elements
         this.pressedKeys = ""; //stores key events (pressed char values)
         this.keyTimer = undefined;
         this.svgRootHasEventListener = false; //status variable to define if svg root has key and mouseover listener or not
     }
     else {
         createCombobox = false;
         alert("Error ("+id+"): wrong nr of arguments! You have to pass over "+nrArguments+" parameters.");
@@ skipping 1037 matching lines @@
     return selectedArrayIndizes;
 }
 
 combobox.prototype.removeCombobox = function() {
     //remove all Elements of combobox
     this.exists = false;
     while (this.parentGroup.hasChildNodes()) {
         this.parentGroup.removeChild(this.parentGroup.firstChild);
     }
 }