// JavaScript Document



function HighlightMainNav ()
{
	
	var url = document.URL;
	var navlinknames = new Array("mnHome", "mnAboutUs", "mnCrash", "mnTraining", "mnTips", "mnContactUs");
	var navlinkdir = new Array( "", "/about", "/crashinvestigation", "/training", "/tips", "/contact");
	
	for( var i=0; i < navlinkdir.length; i++ )
	{
		if( url.indexOf( navlinkdir[i] ) > 0 )
		{
			var navobj = document.getElementById(navlinknames[i]);
			if( navobj) navobj.style.backgroundColor = "#194878";
		}
		
	}//for
	
}

function chklinks ()
{
	var links = document.links;
	var curUrl = document.URL;
	
	var count = 0;
	var matchedLink;
	
	for(i=0; i < links.length; i++)
	{
			var l = links[i].href;
			l = l.replace("../", "");
			if( curUrl.indexOf(l) >= 0 )
			{
				count++;
				matchedLink = links[i];
			}
	}//for
	if( count == 1 && !matchedLink.id )
	{
		matchedLink.style.backgroundColor = "#a9c6e1";	
	}

	
} //chklinks


window.onload = function()
{
	HighlightMainNav();	
	chklinks();
	
}

/***********************************************************************************************/

function load_photos ()
{

	
	var sm_photos = new Array("sm_2.jpg", "sm_3.jpg", "sm_4.jpg");
	var sm_photo_alts = new Array("Tape measure marks accident evidence", "Man installs child safety seat", "Officers examine motorcycle crash");
	
	var lg_photos = new Array("lg_2.jpg", "lg_3.jpg", "lg_4.jpg");
	var lg_photo_alts = new Array("Cars drive along roadway", "Banner advertises free safety seat checks", "Car maneuvers driving course");
	
	var randnum = Math.floor(Math.random() * sm_photos.length);
	
	document.smphoto.src = "images/home/" + sm_photos[randnum];
	document.smphoto.alt = sm_photo_alts[randnum];
	document.smphoto.title = sm_photo_alts[randnum];
	

	document.lgphoto.src = "images/home/" + lg_photos[randnum];
	document.lgphoto.alt = lg_photo_alts[randnum];
	document.lgphoto.title = lg_photo_alts[randnum];
	
	
}//home_photo_sm