var imagePath = "assets/"
var navFlag;

var theCol = "#FFCCFF";
var rolloverCol = "#B8E6E6"; /* navbar rollover color */
var selectCol = "#99CCCC";   /* navbar hilite color */
var ssSelectCol = "#036"; /* css selection hilite color */


var w3c = (document.getElementById) ? 1:0
var ns4 = (document.layers) ? 1:0
var ie4 = (document.all) ? 1:0
var isOp = (window.opera) ? 1:0

navItems = new Array("index.htm","autisminfo.htm","afterdx.htm","aboutirabina.htm",
"whatweoffer.htm","transition.htm","how2help.htm","contact.htm")

imageList = new Array();
imageOn = new Array(); 
imageOff = new Array();


for (x=0; x<7; x++) {
	imageList[x] = 'pmenu_0' + (x+1);
}

for (x=0; x<imageList.length;x++)
	{
	imageOn[x] = new Image(); imageOn[x].src =  imagePath + 'pmenu_0' + (x+1) + '_on.gif';
	imageOff[x]  = new Image(); imageOff[x].src =  imagePath + 'pmenu_0' + (x+1) + '.gif';
	}

styleInsert();
hiliteNav();

function rollOver(i){
	document.images[imageList[i-1]].src = imageOn[i-1].src;
	if(document.navFlag != ("link" + i)) {
		wh = document.getElementById("link" + i);
		wh.style.background = rolloverCol;
	}
}

function rollOut(i){
	document.images[imageList[i-1]].src = imageOff[i-1].src;
	if(document.navFlag != ("link" + i)) {
		wh = document.getElementById("link" + i);
		wh.style.background = "transparent";
		}
}

function hiliteNav() {
	docString = document.location.href;
	docString = docString.substring((docString.lastIndexOf("/") + 1));
	for (a=0;a<navItems.length;a++) {
		if (docString == navItems[a]) 
			{
			document.navFlag = "link" + a
			makeNavStyle(a);
			rollOver(a+1);
			}	
		}
}

function makeNavStyle(x) {
		theStyleStr = '<style>';
		theStyleStr += '#link' + x + '{';
		theStyleStr +=  'background-color: ' + selectCol + '; color: transparent;}</style>'
		document.write(theStyleStr);
}

/* cookie scripts for setting style sheet */

function styleHiLite(theId) {
if(w3c) {
	h=document.getElementById(theId)
	StyleStr = '<style>'
	StyleStr += '#' + theId + '{\n';
	StyleStr +=  'background-color: ' + ssSelectCol + '; color: transparent;}\n</style>'
	document.write(StyleStr);
	}
}
   

function styleInsert() {
	if (document.cookie.indexOf('style=1')>=0)	{
		theStyleString =  '<link rel="stylesheet" type="text/css" href="irabina_sml.css" />\n'
		theStyleString += '<link rel="alternate stylesheet" type="text/css" href="irabina_mid.css" title="Normal text" />\n'; 
		theStyleString += '<link rel="alternate stylesheet" type="text/css" href="irabina_lrg.css" title="Large text" />\n';
		document.write(theStyleString);
		styleHiLite('Style1');
		} else if (document.cookie.indexOf('style=3')>=0) {
        theStyleString =  '<link rel="stylesheet" type="text/css" href="irabina_lrg.css" />\n';
		theStyleString += '<link rel="alternate stylesheet" type="text/css" href="irabina_mid.css" title="Normal text" />\n'; 
		theStyleString += '<link rel="alternate stylesheet" type="text/css" href="irabina_sml.css" title="Small text" />\n';
		document.write(theStyleString);
		styleHiLite('Style3');
			} else {
 		theStyleString =  '<link rel="stylesheet" type="text/css" href="irabina_mid.css" />\n';
		theStyleString += '<link rel="alternate stylesheet" type="text/css" href="irabina_lrg.css" title="Large text" />\n'; 
		theStyleString += '<link rel="alternate stylesheet" type="text/css" href="irabina_sml.css"  title="Small text" />\n';
		document.write(theStyleString);
		styleHiLite('Style2');
		}
}

function setStyle (newstyle) {
	var expdate = new Date();
	expdate.setTime(expdate.getTime() + (1000*3600*24*365));
	document.cookie = 'style=' + newstyle + '; expires=' + expdate.toGMTString() + '; path=/';
	alert ('This style choice will persist for a year unless changed.\n You may need to reload the page.');
	self.location = self.location;
}