// these are functions that need to appear on every page
function validateEmail() {
	var e = document.getElementById("newsletter_email").value;

	if (e == "") {
		alert("Please enter an email address in the field provided!");
		return false;
	} else if (e.indexOf("@") == -1 || e.indexOf(".") == -1) {
		alert("Please enter a valid email address in the field provided!");
		return false;
	} else {
		return true;
	}
	
}

function address(which) {
	document.getElementById("addresses").className = "sel_" + which;
}

//leaving the senate servers so we have to display this message:
//function openWin(urlToOpen) {
//	window.open(site_webroot + "redirect/?r=" + encodeURIComponent(location.hostname) + "&u=" + encodeURIComponent(urlToOpen));
//}

//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);	
}


//used throughout the site to show link descriptions in the status bar instead of javascript window.opens.
function showLinkDescription(linkDesc) {
	//alert("linkDesc:" + linkDesc);
	window.status="hello there";	
	//alert(window.status);
	
	
}

//called on mouse out to clear the status bar.
function clearStatus() {
	
	window.status="";	
	
}


function search() {
		document.getElementById("supra_nav_links").style.display = "none";
		document.getElementById("supra_nav_search").style.display = "";
		document.getElementById("search_terms").focus();
	}
	
	function validateSearch() {
		if (document.getElementById("search_terms").value != "") {
			return true;
		} else {
			return false;
		}
	}
	
	function hideSearch() {
		document.getElementById("supra_nav_search").style.display = "none";
		document.getElementById("supra_nav_links").style.display = "";
	}
	
//font size functions
var currentSize = 1;
var textIncrease = null; 
var textDecrease = null;

function SetCookie( name, value, expires, path, domain, secure )
{
var today = new Date();
today.setTime( today.getTime() );
if ( expires )
{
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date( today.getTime() + (expires) );

document.cookie = name + "=" +escape( value ) +
( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
( ( path ) ? ";path=" + path : "" ) +
( ( domain ) ? ";domain=" + domain : "" ) +
( ( secure ) ? ";secure" : "" );
}

// this function gets the cookie, if it exists
function Get_Cookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.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 ) );
}

function CE_FixIE6(which) {
	document.getElementById("font_select").style.cssText = "background-position:0px 0px";
	document.getElementById("font_select_med").style.cssText = "background-position:0px 0px";
	document.getElementById("font_select_large").style.cssText = "background-position:0px 0px";
	if (which == "") {
		document.getElementById("font_select").style.cssText = "background-position:0px -14px";
	} else {
		document.getElementById("font_select_" + which).style.cssText = "background-position:0px -14px";
	}
}

function CE_SetPageFont(which) {
	document.body.className = "body_" + which;
	
	document.getElementById("font-resizer").className = which;
	document.getElementById("font-resizer").setAttribute("className", which);

	// IE6 hack
	if (document.all && !window.XMLHttpRequest) {
		CE_FixIE6(which);
	}
	var domain = site_webroot.substring(site_webroot.indexOf("http://") + 7, site_webroot.length - 1);

	SetCookie("font_size", which, 1, "/");
	window.location.href = window.location.href;
}

function CE_LoadPageFont() {
	if(Get_Cookie("font_size")) {
		fs = Get_Cookie("font_size");

		document.body.className = "body_" + fs;
		document.getElementById("font-resizer").className = fs;
		
		// IE6 hack
		if (document.all && !window.XMLHttpRequest) {
			CE_FixIE6(fs);
		}
	}
}

/* language selector */
window.addEvent("domready", function() {
	if (Browser.Engine.trident) {
		var nav_ul = $("nav").getElement("ul");
		var lis = nav_ul.getElements("li");
		$each(lis, function(li) {
			if ($chk(li.id) && li.id.indexOf("nav-") != -1) {
				li.addEvents({
					"mouseover": function() {
						this.addClass("over");
					},
					"mouseout": function () {
						this.removeClass("over");
					}
				});
			}
		});
	}

	$("lang-select-link").removeEvents("click");
	$("lang-select-link").addEvent("click", function(e) {
		var event = new Event(e);
		event.stop();
		var c = null;
		var lang = Cookie.read("LANGUAGE");
		Cookie.dispose("LANGUAGE");
		if (!$chk(lang) || lang == "en") {
			c = Cookie.write("LANGUAGE", "es", {
				path: "/",
				duration: 365
			});
		} else {
			c = Cookie.write("LANGUAGE", "en", {
				path: "/",
				duration: 365
			});
		}
		window.location.href = window.location.href;
	});
});