//#### Regular Expressions library.
var oRegex = new Object() ;

oRegex.UriProtocol = new RegExp('') ;
oRegex.UriProtocol.compile( '^(((http|https|ftp|news):\/\/)|mailto:)', 'gi' ) ;

oRegex.UrlOnChangeProtocol = new RegExp('') ;
oRegex.UrlOnChangeProtocol.compile( '^((www)(?=.)).', 'gi' ) ;

oRegex.UrlOnChangeTestOther = new RegExp('') ;
oRegex.UrlOnChangeTestOther.compile( '^(javascript:|#|/)', 'gi' ) ;

oRegex.ReserveTarget = new RegExp('') ;
oRegex.ReserveTarget.compile( '^_(blank|self|top|parent)$', 'i' ) ;

oRegex.PopupUri = new RegExp('') ;
oRegex.PopupUri.compile( "^javascript:void\\(\\s*window.open\\(\\s*'([^']+)'\\s*,\\s*(?:'([^']*)'|null)\\s*,\\s*'([^']*)'\\s*\\)\\s*\\)\\s*$" ) ;

oRegex.PopupFeatures = new RegExp('') ;
oRegex.PopupFeatures.compile( '(?:^|,)([^=]+)=(\\d+|yes|no)', 'gi' ) ;

//#### Called while the user types the URL.
function OnUrlChange(txtUrl)
{
	var sUrl = GetE(txtUrl).value ;
	var sProtocol = oRegex.UrlOnChangeProtocol.exec( sUrl ) ;

	if ( sProtocol )
	{
		sUrl = sUrl.substr( sProtocol[0].length ) ;
		GetE(txtUrl).value = sUrl ;
		//GetE('cmbLinkProtocol').value = sProtocol[0].toLowerCase() ;
	}
	else if ( oRegex.UrlOnChangeTestOther.test( sUrl ) )
	{
		//GetE('cmbLinkProtocol').value = '' ;
	}
}