Bug 187178 Remove Total.* from expression build
The Total java script object is no longer supported by BIRT. It should be removed from Expression builder.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
* @param val
	 * @return true if the value can be converted to a valid Integer, else
	 *         false.
	 */
	public static boolean isValidInteger( String val )
	{
		try
		{
			Integer.parseInt( val );
		}
		catch ( Exception e )
		{
			return false;
		}
		return true;
	}
	/**
	 * Checks if the value is a valid number, including any integer and float,
	 * double.
	 * 
	 * @param val
	 */
	public static boolean isValidNumber( String val )
	{
		try
		{
			Double.parseDouble( val );
		}
		catch ( Exception e )
		{