$(document).ready(function() {	
	
	$(".ImageButton").hover(
	  function () {
		$(this).attr("src",$(this).attr("src").replace("_off", "_on"));
	  }, 
	  function () {
		$(this).attr("src",$(this).attr("src").replace("_on", "_off"));
	});
	
	$("#navMain a img").hover(
	  function () {
		$(this).attr("src",$(this).attr("src").replace("_off", "_on"));
	  }, 
	  function () {
		$(this).attr("src",$(this).attr("src").replace("_on", "_off"));
	});
		
	$("#navSubItem  ul li").each(function() {	
		var section = $(this).find('a').attr("href").toLowerCase();
		var url = document.location.href.toLowerCase();
		//alert(section.split("/").length);
		if (3 < section.split("/").length) { //For example, NewsEvents section has subfolder
			section = section.substring(0, section.lastIndexOf("/"));
			url = url.substring(0, url.lastIndexOf("/"));
		}
		if(0 <= url.lastIndexOf(section.toLowerCase())) {
			$(this).addClass("here");	
		}
	});	
	
	/* Resources */
	$(".resourcesListContent .resourcesItem").last().addClass("last");
	
	/* Homepage */
	var max = $("div#myth-box-text div").length;
	var randomNum = Math.floor(Math.random()*max);	
	
	$('div#myth-box-text div:eq(' + randomNum + ')').css("display", "block");
	$('div#myth-box-text div:not(:eq(' + randomNum + '))').css("display", "none");
	
	$('div#fact-box-text div:eq(' + randomNum + ')').css("display", "block");
	$('div#fact-box-text div:not(:eq(' + randomNum + '))').css("display", "none");
})


function manageNav () {
	var url = "'" + document.location.href.toLowerCase() + "'";	
	var urlArr = url.split("/");	
	var elementId = 'nav';	
	
	for(i = 3; i < urlArr.length; i++) {	
		
		if (0 < urlArr[i].lastIndexOf(".")) {			
			var elementId = elementId + '_' + urlArr[i].substring(0,urlArr[i].lastIndexOf("."));
		} 
		else {
			var elementId = elementId + '_' + urlArr[i];
		}
		var itemName = elementId;	
		
		//alert(itemName);
		if (document.getElementById(itemName)){	
			//alert(document.getElementById(itemName).src);
			var thisImage = document.getElementById(itemName);
			var imageName = thisImage.src.substring(0,thisImage.src.lastIndexOf("_o"));
			document.getElementById(itemName).src = imageName + '_hr.jpg';
		}					
	} 
}


var min=9;
var max=16;
function increaseFontSize() {
   var p = document.getElementsByTagName('body');
   for(i=0;i<p.length;i++) {
	  if(p[i].style.fontSize) {
		 var s = parseInt(p[i].style.fontSize.replace("px",""));
	  } else {
		 var s = 12;
	  }
	  if(s!=max) {
		 s += 1;
	  }
	  p[i].style.fontSize = s+"px"
   }
}
function decreaseFontSize() {
   var p = document.getElementsByTagName('body');
   for(i=0;i<p.length;i++) {
	  if(p[i].style.fontSize) {
		 var s = parseInt(p[i].style.fontSize.replace("px",""));
	  } else {
		 var s = 12;
	  }
	  if(s!=min) {
		 s -= 1;
	  }
	  p[i].style.fontSize = s+"px"
   }   
}