var idList = new Array(
						"main-nav"
						);
function initMenu()
{
	for (var k = 0; k < idList.length; k++) {
		var nodes = document.getElementById(idList[k]).getElementsByTagName("li");
		for (var i=0; i<nodes.length; i++)
		{
			nodes[i].onmouseover = function()
			{
				this.className += " hover";
			}
			nodes[i].onmouseout = function()
			{
				this.className = this.className.replace(" hover", "");
			}
		}
	}
}
if (document.all && !window.opera) attachEvent("onload", initMenu);

window.onload = function(){
	textChanger.init();
}

var textChanger = {
	cpanel : 'textchanger',  //set here the id of the element (div, p) within you want to insert the control panel
	element : 'main',   	 //set here the id of the element (div, p) within you want to change the text
	defaultFS : 1,         //set here the default font size in 'em'
	init: function() {
		var cpel = document.getElementById(textChanger.cpanel);
		var el = document.getElementById(textChanger.element);
		if (cpel == null || el == null) {alert('The elements with the \"'+textChanger.cpanel+'\" and/or \"'+textChanger.element+'\" ID do not exist in HTML source.');} else {
		var u = document.createElement('ul');
		cpel.appendChild(u);
		u.innerHTML = 
		'<li id="decrease"><a href="#" title="Decrease font size">A</a></li>'+
		'<li id="reset"><a href="#" title="Default font size">A</a></li>'+
		'<li id="increase"><a href="#" title="Increase font size">A</a></li>'
		var sz = textChanger.getCookie();
		el.style.fontSize = sz ? sz + 'em' : textChanger.defaultFS + 'em';
		var incr = document.getElementById('increase');
		incr.onclick = function(){textChanger.changeSize(1); return false;};
		var decr = document.getElementById('decrease');
		decr.onclick = function(){textChanger.changeSize(-1); return false;};
		var reset= document.getElementById('reset');
		reset.onclick = function(){textChanger.changeSize(0); return false;};
		}
	} ,
	changeSize: function(val) {
		var el = document.getElementById(textChanger.element);
		var fSize = parseFloat(el.style.fontSize);
		if (val == 1) {
			fSize += 0.1;
			if (fSize > 1.2) fSize = 1.2;
		} 
		if (val == -1) {
			fSize -= 0.1;
			if (fSize < 0.8) fSize = 0.8;
		}		
		if (val == 0) {
			fSize = textChanger.defaultFS;
		}
		el.style.fontSize = fSize + 'em';
		textChanger.updateCookie(fSize);
		} ,
		
	updateCookie: function(vl) {
		var today = new Date();
		var exp = new Date(today.getTime() + (365*24*60*60*1000)); //the cookie will expire in one year  
		document.cookie = 'textChangerL=size=' + vl + ';' +'expires=' + exp.toGMTString() + ';' +'path=/';
	} ,

	getCookie: function() { 
		var cname = 'textChangerL=size=';	
		var start = document.cookie.indexOf(cname);
		var len = start + cname.length;
		if ((!start) && (cname != document.cookie.substring(0,cname.length))) {return null;}
		if (start == -1) return null;
		var end = document.cookie.indexOf(";",len);
		if (end == -1) end = document.cookie.length;
		return unescape(document.cookie.substring(len, end));
	}
}

// newsletter signup functions

function validateNewsletterEmail() {
	n = $("notice");
	n.style.display = "none";
	n.innerHTML = "";
	
	var e = document.getElementById("newsletter_email");

	if (e.value == "") {
		//alert("Please enter an email address in the field provided!");
		n.innerHTML = "Please enter an email address!";
		n.style.display = "block";
		return false;
	} else if (e.value.indexOf("@") == -1 || e.value.indexOf(".") == -1) {
		//alert("Please enter a valid email address in the field provided!");
		$("notice").innerHTML = "Please enter a valid email address!";
		n.style.display = "block";
		return false;
	} else {
		return true;
		/*
		e.disabled = true;
		$("sign_up").disabled = true;
		var s = $("signup_indicator");
		s.innerHTML = "Please wait...";
		s.style.display = "block";

		new Ajax(application_webroot + "cfc_extensions/com/creativengine/newsletter.cfc", {
			postBody: "method=signup&email=" + encodeURIComponent(e.value),
			onComplete: addedEmail,
			evalScripts: true
		}).request();
		*/
	}
	//return false;
}

function address(which) {
	document.getElementById("addresses").className = "sel_" + which;
	document.getElementById("office-location").className = "sel_" + which;
	//document.getElementById("location-photo").className = "sel_" + which;
}

// misc window opening functions

//leaving the senate servers so we have to display this message:
function openWin(urlToOpen) {
	window.open("http://www.senate.gov/cgi-bin/exitmsg?url=" + urlToOpen);	
}

//leaving the current site, but staying on senate servers.
function openSenateWin(urlToOpen) {
	window.open(urlToOpen);	
}