/*

nav.js

 Authored by Christopher Raymond - christopher@oasisnetworks.com
 Oasis Networks is a Minneapolis based web design & computer consulting company serving the greater Twin Cities area.

*/


// ------------------------------------------------------------------------------------------------------------
//  IDENTIFY BROWSERS:
// ------------------------------------------------------------------------------------------------------------

	var IE4 = ( document.all ) ? true : false;
	var NS4 = ( document.layers ) ? true : false;
	var W3C = ( !document.all && document.getElementById ) ? true : false;

	var good_browser = ( NS4 || IE4 || W3C ) ? true : false;
	var images_loaded = null;


// ------------------------------------------------------------------------------------------------------------
//  ARRAY & NAV IMAGE SETUPS:
// ------------------------------------------------------------------------------------------------------------

	if ( good_browser ) {

		var nav_reg = new Array();
		var nav_over = new Array();

		for ( x = 1; x < 10; x++ ) {

			nav_over[ x ] = new Image();
			nav_reg[ x ] = new Image();
		}
	}

	function PreloadNavImages() {

		if ( good_browser ) {

			nav_over[1].src="/media/nav-buttons/about-over.gif";
			nav_reg[1].src="/media/nav-buttons/about-reg.gif";
			nav_over[2].src="/media/nav-buttons/why-over.gif";
			nav_reg[2].src="/media/nav-buttons/why-reg.gif";
			nav_over[3].src="/media/nav-buttons/training-over.gif";
			nav_reg[3].src="/media/nav-buttons/training-reg.gif";
			nav_over[4].src="/media/nav-buttons/add-programs-over.gif";
			nav_reg[4].src="/media/nav-buttons/add-programs-reg.gif";
			nav_over[5].src="/media/nav-buttons/itin-elig-over.gif";
			nav_reg[5].src="/media/nav-buttons/itin-elig-reg.gif";
			nav_over[6].src="/media/nav-buttons/coaches-etc-over.gif";
			nav_reg[6].src="/media/nav-buttons/coaches-etc-reg.gif";
			nav_over[7].src="/media/nav-buttons/home-over.gif";
			nav_reg[7].src="/media/nav-buttons/home-reg.gif";
			nav_over[8].src="/media/nav-buttons/registration-over.gif";
			nav_reg[8].src="/media/nav-buttons/registration-reg.gif";
		
			images_loaded = true;

		}
	}


// ------------------------------------------------------------------------------------------------------------
//  MOUSEOVER FUNCTIONS:
// ------------------------------------------------------------------------------------------------------------	
	
	function msOvr( x, y ) {
	
		if ( good_browser && images_loaded ) {
			document.images[ y ].src=nav_over[ x ].src
		}
	}

	function msOut( x, y ) {
		if ( good_browser && images_loaded ) {
			document.images[  y ].src=nav_reg[ x ].src
		}
	}