An SGML identifier used as the target for hypertext links or for naming particular elements in associated style sheets. Valid ID values must begin with a letter. The underbar character, "_", may be used in the ID name. The ID should be unique throughout the scope of the document. If more than one object with the same identifier exists in a document, a collection of those named items is created that can only be referenced by ordinal position.
The Title attribute is used to provide advisory information. The contents of the title attribute will be displayed in a tooltip during the onmouseover event.