/**
 * Bilder vergroessern 
 */
function zoom( image ) {
  var zoom_image = new Image();
	
	zoom_image.src = image.src;
	
	var position_x = ( screen.availWidth - zoom_image.width ) / 2; 
  var position_y = ( screen.availHeight - zoom_image.height ) / 2;
	
	var w = window.open( '', 'zoom_window', 'width=' + zoom_image.width + ',height=' + zoom_image.height + ',top=' + position_y + ',left=' + position_x + ',location=no,menubar=no,toolbar=no,status=no,scrollbars=no,resizable=no' );
	
	w.document.write( '<html><head><title>' + zoom_image.src + '</title></head><body style="border: 0; margin: 0; padding: 0;"><img src="' + image.src + '" /></body></html>' );
}

/**
 * neues Anfragefenster oeffnen 
 */
function openWindow( product_id ) {
  var position_x = ( screen.availWidth - 510 ) / 2; 
  var position_y = ( screen.availHeight - 700 ) / 2;
  var form = document.getElementById( 'frmQuery' );
  var url = form.action;
  
  var query = 'language=' + form.elements[ 'language' ].value + '&product_id=' + product_id;

  window.open( url + '?' + query, 'query_window', 'width=510, height=700, top=' + position_y + ',left=' + position_x + 'location=no,menubar=no,toolbar=no,status=no,scrollbars=yes,resizable=yes' ); 

}

/**
 * ein gewaehltes Produkt aus der Liste entfernen
 */
function removeProduct( remove_id ) {
  window.location.href ='query_equipment.php?product_id=' + document.getElementById( 'product_id' ).value + '&remove_id=' + remove_id;     
}

/**
 * Formulardaten beim Schliessen des Fensters, ueber der Schliessen-Knopf, abschicken
 */
function save_data() {
  document.frmQuery.elements[ 'action' ].value = 'close'; 
  t = document.frmQuery.submit(); 
  window.setTimeout( "window.close()", 1 );  // ein bischen warten, sonst werden Daten nicht uebernommen
}

