added YUI and YUI-ext

fixed the resizable text area with IE problem
fixed the ad space with IE problem
merged the 7.2.0 and 7.1.4 change logs

www/extras/yui-ext/source/grid/AbstractColumnModel.js

@@ -0,0 +1,111 @@
+/*
+ * YUI Extensions
+ * Copyright(c) 2006, Jack Slocum.
+ * 
+ * This code is licensed under BSD license. 
+ * http://www.opensource.org/licenses/bsd-license.php
+ */
+
+/**
+ * @class
+ * This abstract class defines the ColumnModel interface and provides default implementations of the events required by the Grid. 
+ * @constructor
+*/
+YAHOO.ext.grid.AbstractColumnModel = function(){
+	/** Fires when a column width is changed - fireDirect sig: (this, columnIndex, newWidth)
+     * @type YAHOO.util.CustomEvent 
+     * */
+    this.onWidthChange = new YAHOO.util.CustomEvent('widthChanged');
+    /** Fires when a header has changed - fireDirect sig: (this, columnIndex, newHeader)
+     * @type YAHOO.util.CustomEvent 
+     * */
+    this.onHeaderChange = new YAHOO.util.CustomEvent('headerChanged');
+	/** Fires when a column is hidden or unhidden - fireDirect sig: (this, columnIndex, hidden)
+     * @type YAHOO.util.CustomEvent 
+     * */
+    this.onHiddenChange = new YAHOO.util.CustomEvent('hiddenChanged');
+};
+
+YAHOO.ext.grid.AbstractColumnModel.prototype = {
+	fireWidthChange : function(colIndex, newWidth){
+		this.onWidthChange.fireDirect(this, colIndex, newWidth);
+	},
+	
+	fireHeaderChange : function(colIndex, newHeader){
+		this.onHeaderChange.fireDirect(this, colIndex, newHeader);
+	},
+	
+	fireHiddenChange : function(colIndex, hidden){
+		this.onHiddenChange.fireDirect(this, colIndex, hidden);
+	},
+	
+	/**
+     * Interface method - Returns the number of columns.
+     * @return {Number}
+     */
+    getColumnCount : function(){
+        return 0;
+    },
+    
+    /**
+     * Interface method - Returns true if the specified column is sortable.
+     * @param {Number} col The column index
+     * @return {Boolean}
+     */
+    isSortable : function(col){
+        return false;
+    },
+    
+    /**
+     * Interface method - Returns true if the specified column is hidden.
+     * @param {Number} col The column index
+     * @return {Boolean}
+     */
+    isHidden : function(col){
+        return false;
+    },
+    
+    /**
+     * Interface method - Returns the sorting comparison function defined for the column (defaults to sortTypes.none).
+     * @param {Number} col The column index
+     * @return {Function}
+     */
+    getSortType : function(col){
+        return YAHOO.ext.grid.DefaultColumnModel.sortTypes.none;
+    },
+    
+    /**
+     * Interface method - Returns the rendering (formatting) function defined for the column.
+     * @param {Number} col The column index
+     * @return {Function}
+     */
+    getRenderer : function(col){
+        return YAHOO.ext.grid.DefaultColumnModel.defaultRenderer;
+    },
+    
+    /**
+     * Interface method - Returns the width for the specified column.
+     * @param {Number} col The column index
+     * @return {Number}
+     */
+    getColumnWidth : function(col){
+        return 0;
+    },
+    
+    /**
+     * Interface method - Returns the total width of all columns.
+     * @return {Number}
+     */
+    getTotalWidth : function(){
+        return 0;
+    },
+    
+    /**
+     * Interface method - Returns the header for the specified column.
+     * @param {Number} col The column index
+     * @return {String}
+     */
+    getColumnHeader : function(col){
+        return '';
+    }
+};