window. onload = function ( ) {

	// check to see that the browser supports the getElementsByTagName method

	// if not, exit the loop

	if ( ! document. getElementsByTagName ) {

		return false ;

	}

	// create an array of objects of each link in the document

	var popuplinks = document. getElementsByTagName ( "a" ) ;

	// loop through each of these links (anchor tags)

	for ( var i= 0 ; i < popuplinks. length ; i++ ) {

		// if the link has a class of "popup"...

		if ( popuplinks [ i ] . getAttribute ( "class" ) == "popup" ) {

			// add an onclick event on the fly to pass the href attribute

			// of the link to our second function, openPopUp

			 popuplinks [ i ] . onclick = function ( ) {

			 openPopUp ( this . getAttribute ( "href" ) ) ;

			return false ;

			}

		}

	}

}



function openPopUp ( linkURL ) {

 window. open ( linkURL, 'popup' , 'width=300,height=150,resizable=yes' )

}