// Javascript Functions for Public Access version of ECHO Website
// Developed by Abt Associates Inc., www.abtassociates.com

// Created: October 16, 2000 by Michael Leuchtenberger, michael_leuchtenberger@abtassoc.com
// Updated: March 17, 2002 by Michael Leuchtenberger, michael_leuchtenberger@abtassoc.com
// Updated: June 19, 2003 by Greg Pelly, greg_pelly@abtassoc.com
// Updated: July 30, 2008 by Andrew Schulman, schulman.andrew@epa.gov
// - corrected image URLs

 if (navigator.appVersion.substring(0,1) >= 3) {

  search_by_permit1	= new Image (110,15);
  search_by_permit1.src = "/echo/images/search_by_permit1.jpg";
  search_by_permit2	= new Image (110,15);
  search_by_permit2.src = "/echo/images/search_by_permit2.jpg";

  go1	= new Image (24,18);
  go1.src = "/echo/images/go_button1.gif";
  go2	= new Image (24,18);
  go2.src = "/echo/images/go_button2.gif";
		
  search1	= new Image (47,15);
  search1.src = "/echo/images/search1.gif";
  search2	= new Image (47,15);
  search2.src = "/echo/images/search2.gif";
  
  signup_for_echo_updates1	= new Image (81,28);
  signup_for_echo_updates1.src = "/echo/images/signup_for_echo_updates1.gif";
  signup_for_echo_updates2 = new Image (81,28);
  signup_for_echo_updates2.src = "/echo/images/signup_for_echo_updates2.gif";
  
  help1	= new Image (80,36);
  help1.src = "/otis/images/help1.gif";
  help2	= new Image (80,36);
  help2.src = "/otis/images/help2.gif";

  help_quicksearch1	= new Image (38,27);
  help_quicksearch1.src = "/otis/images/help_quicksearch1.gif";
  help_quicksearch2	= new Image (38,27);
  help_quicksearch2.src = "/otis/images/help_quicksearch2.gif";

  new_search1	= new Image (92,14);
  new_search1.src = "/otis/images/new_search1.gif";
  new_search2	= new Image (92,14);
  new_search2.src = "/otis/images/new_search2.gif";

}

///////////////////////////////////////////////////
// Switches a single image (with preloaded images)
///////////////////////////////////////////////////

function switchImage(imageName,newImage) {
  if (navigator.appVersion.substring(0,1) >= 3) {
    document.images[imageName].src = eval(newImage + ".src")
  }
}

/////////////////////////////////////////////////
// Switches 2 distinct images with mouse effect
/////////////////////////////////////////////////

function switchIndexPair(imageID1,imageName1,imageID2,imageName2) { 
  if (navigator.appVersion.substring(0,1) >= 3) {
    document.images[imageID1].src = eval(imageName1 + ".src")
    document.images[imageID2].src = eval(imageName2 + ".src")
  }
}

/////////////////////////////////////////////////
// Switches 4 distinct images with mouse effect
/////////////////////////////////////////////////

function switchQuartet(imageID1,imageName1,imageID2,imageName2,imageID3,imageName3,imageID4,imageName4) { 
  if (navigator.appVersion.substring(0,1) >= 3) {
    document.images[imageID1].src = eval(imageName1 + ".src")
    document.images[imageID2].src = eval(imageName2 + ".src")
    document.images[imageID3].src = eval(imageName3 + ".src")
    document.images[imageID4].src = eval(imageName4 + ".src")
  }
}