//Begin switchable stylesheet code from http://www.alistapart.com/articles/alternate/

function setActiveStyleSheet(title) {
	var i, a, main;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style")!= -1 && a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) a.disabled = false;
		}
	}
}

function getActiveStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style")!= -1 && a.getAttribute("title") &&!a.disabled) return a.getAttribute("title");
	}
	return null;
}

function getPreferredStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style")!= -1 && a.getAttribute("rel").indexOf("alt") == -1 && a.getAttribute("title")) return a.getAttribute("title");
	}
	return null;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

window.onload = function(e) {
	var cookie = readCookie("style");
	var title = cookie? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
}

window.onunload = function(e) {
	var title = getActiveStyleSheet();
	createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title); 

//End Switchable stylesheet code




// open popup window
function openPopup(URL, name, ww, hh) {
	var xcoord, ycoord, popWidth, popHeight, popName;
	
	xcoord = 0;
	ycoord = 0;
	
	if(name != null) {
		popName = name;
	}
	else {
		popName = "popup";
	}
	
	if(ww != null) {
		popWidth = ww;
	}
	else {
		popWidth = 460;
	}
	
	if(hh != null) {
		popHeight = hh;
	}
	else {
		popHeight = 580;
	}
	
	if(document.getElementById) {
		xcoord = Math.round((screen.availWidth - popWidth) / 2);
		ycoord = Math.round((screen.availHeight - popHeight) / 2);
	}
	
  myPopup = window.open(URL,popName,'width=' + popWidth + ',height=' + popHeight + ',left=' + xcoord + ',top=' + ycoord + ',directories=no,menubar=yesn,status=no,resizable=1,scrollbars=yes');
  if (!myPopup.opener) {
		myPopup.opener = self;
	}
	
	myPopup.focus();
}


// The following function is used to create mailto links in an effort to thwart 
//email harvesting spam-bots.


function generate_mailto_link( username, domain ) {
	var atsign = "&#64;";
	var addr = username + atsign + domain;
	document.write( 
		"<" + "a" + " " + "href=" + "mail" + "to:" + addr + ">" +
		addr +
		"<\/a>");
}




// used to snap window to image size
function PopupPic(sPicURL) {
     window.open( "../snaptoimage.html?"+sPicURL, "",  
     "resizable=1,HEIGHT=200,WIDTH=200");
   } 
	 
//to pull variables off query string; used by "snaptoimage.html"
function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  } 
}


//MACROMEDIA FUNCTIONS////////////////////////////////////////////////////////////////////////////////////////
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}