var coa_s_pagecount = 0;
var coa_s_searchcount = 0;
var coa_s_dursecs = 0;
var coa_s_peight = '';

var coa_s_mobileflag = -1;

function coa_s_ismobile() {
	if ( coa_s_mobileflag > -1 ) { return coa_s_mobileflag; }
	var linkarr = document.getElementsByTagName("script");
	var i = 0;
	coa_s_mobileflag = 0;
	while (i < linkarr.length ) {
		var lo = linkarr[i];
		var loh = lo.getAttribute('src');
		if ( loh != null ) {
			if ( loh.indexOf("/mobile") > -1 ) {
				// mobile
				coa_s_mobileflag = 1;
			}
		}
		++i;
	}
	return coa_s_mobileflag;
}

function coa_s_count_dept() {
	var dval = coa_s_getdept();
	if (dval == null) { return; }
	var cname = "surveydepts";
	var dcountstring = coa_surveyreadcookie(cname);
	if ( dcountstring == null ) { dcountstring = ''; }
	var ds = dcountstring.split(':');
	var i = 0;
	var found = 0;
	var newdstr = '';
	while ( i < ds.length ) {
		var pair = ds[i].split('/');
		var d = unescape(pair[0]);
		var v = parseInt(pair[1]);
		if ( d != '' ) {
			coa_s_pagecount += v;
			if ( d == 'SEARCH' ) {
				coa_s_searchcount = v;
			}
			if ( d == dval ) {
				var ncount = 1.0 + v;
				newdstr = newdstr.concat(escape(dval),'/',ncount,':');
				found = 1;
			} else {
				newdstr = newdstr.concat(ds[i],':');
			}
		}
		++i;
	}
	if ( found < 1 ) {
		newdstr = newdstr.concat(escape(dval),'/',1,':');
	}
	++coa_s_pagecount;
	if ( dval == 'SEARCH' ) { ++coa_s_searchcount; }
	var nv = newdstr.substring(0,(newdstr.length - 1));
	coa_surveymakecookie(cname,nv,null);
}

function coa_s_getdept() {
	// search results
	if ( document.getElementById('cse-search-box') != null ) { return 'SEARCH'; }
	// departmental RSS
	var linkarr = document.getElementsByTagName("link");
	var i = 0;
	var ddir = null;
	while (i < linkarr.length ) {
		var lo = linkarr[i];
		var loh = lo.getAttribute('href');
		if ( loh != null ) {
			// home page 
			if ( loh == '/RSS.aspx' ) { return 'HOME'; }
			var rpos = loh.lastIndexOf('/RSS.aspx');
			if ( rpos > 1 ) {
				var ss = loh.substring(0,(rpos - 0));
				var spos = ss.lastIndexOf('/');
				if ( spos > -1 ) {
					return ss.substring((spos + 1),(ss.length + 1));
				}
			}
		} 
		++i;
	}
	return ddir;
}

// http://www.webreference.com/programming/javascript/onloads/
function coa_s_addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

function coa_surveymakecookie(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=/; domain=.alexandriava.gov;";
}

function coa_surveyreadcookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  var retval = null;
  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) {
      retval = c.substring(nameEQ.length,c.length);
    }
  }
  return retval;
}

function coa_w3survey_showdiv() {
	coa_w3survey_showtab();
	var hobj = document.getElementById("coa_s_header");
	if ( hobj != null ) { 
		//coa_surveymakecookie("surveyclosed","1",null);
		coa_s_toggle();
	}
}

function coa_w3survey_showtab() {
	var tobj = document.getElementById("coa_s_outer");
	if ( tobj == null ) { 
		coa_s_makediv();
	}
}

function coa_s_toggle() {
	var pobj = document.getElementById("coa_s_panel");
	//if ( pobj.style.width == '1px' ) {
//alert('toggle running');
	if ( pobj.style.display == 'none' ) {
//alert('toggle opening');
		//pobj.style.width = coa_s_pwidth + 'px';
		pobj.style.display = '';
		coa_surveymakecookie("surveyclosed","0",90);
		var oobj = document.getElementById("coa_s_outer");
		if ( coa_s_peight == '' ) {
			coa_s_peight = oobj.style.height;
		}
		oobj.style.height = '';
	} else {
//alert('toggle closing');
		//pobj.style.width = '1px';
		pobj.style.display = 'none';
		coa_surveymakecookie("surveyclosed","1",90);
		var oobj = document.getElementById("coa_s_outer");
		oobj.style.height = coa_s_peight;
	}
}

function coa_s_makediv() {
	var mbody = document.getElementById("coa_pageheader");
	var ishome = 0;
	if ( mbody == null ) {
		mbody = document.getElementById("HomepageTabs").parentNode;
		ishome = 1;
	}
	if ( mbody == null ) { return; }

	// TODO: if mobile, do somthing else!

	// desktop page
	var clickcode = "coa_s_toggle();";
	var headerhtml = "How can we improve our website? Take a survey and let us know.";

	if (navigator.appVersion.indexOf("MSIE 7.") != -1) {
		clickcode = '';
		headerhtml = "<a href=\"#\" onClick=\"coa_s_toggle();\" class=\"coa_s_headerlink\">" + headerhtml + "</a>";
	}

	// outer div
	var odiv = document.createElement('div');
	odiv.setAttribute('id','coa_s_outer');
	odiv.setAttribute('class','coa_s_outer_c');
	var t2pheight = (coa_s_pheight + 43); 
	///odiv.style.height = t2pheight + 'px';
	///odiv.style.top = '25%';
	///odiv.style.left = '-5px';
	///odiv.style.width = '32px';
	// make and add header div
	var hdiv = document.createElement('div');
	hdiv.setAttribute('id','coa_s_header');
	hdiv.setAttribute('class','coa_s_header_c');
	if ( clickcode != '' ) {
		hdiv.setAttribute('onClick',clickcode);
	}
	//hdiv.style.left = "0px";
	//hdiv.style.width = coa_s_hwidth + "px";
	///var tpheight = (coa_s_pheight - 5); 
	///hdiv.style.height = tpheight + "px";
	//hdiv.style.top = coa_s_ptop + "px";
	hdiv.innerHTML = headerhtml;
	odiv.appendChild(hdiv);
	// make and add panel div
	var pdiv = document.createElement('div');
	pdiv.setAttribute('id','coa_s_panel');
	pdiv.setAttribute('class','coa_s_panel_c');
	//pdiv.style.left = coa_s_pleft + "px";
	//pdiv.style.width = "1px"; // default collapsed
	pdiv.style.display = 'none';
	//pdiv.style.height = coa_s_pheight + "px";
	//pdiv.style.top = coa_s_ptop + "px";
	odiv.appendChild(pdiv);
	// populate panel div
	var p1 = document.createElement('p');
	p1.innerHTML = coa_s_p1;
	pdiv.appendChild(p1);
	var p2 = document.createElement('p');
	p2.innerHTML = coa_s_p2;
	pdiv.appendChild(p2);

	// move the text over in the main well

	// insert in main page
	var fc = mbody.firstChild;
	if ( fc != null ) {
		mbody.insertBefore(odiv,fc);
		return;
	}
	mbody.appendChild(odiv);
}


function coa_s_set_stime() {
	var stimeName = "surveystime";
	var stime = coa_surveyreadcookie(stimeName);
	var nobj = new Date();
	var tt = parseInt(nobj.getTime() / 1000);
	if ( stime == null ) { 
		coa_surveymakecookie(stimeName,tt,null);
		return;
	}
	// how long they've been here
	coa_s_dursecs = tt - parseInt(stime);
}

function coa_s_makelink() {
	// recalculate time spent on our site
	coa_s_set_stime();
	var cname = "surveydepts";
	var dcountstring = coa_surveyreadcookie(cname);
	var ism = coa_s_ismobile();
	if ( dcountstring == null ) { dcountstring = ''; }
	var rguid  = Math.floor(Math.random()*100000000000000001);
	var sglink = coa_s_sgurl + '?ckey=' + rguid + '&pagecount=' + coa_s_pagecount + '&searchcount=' + coa_s_searchcount + '&timespent=' + coa_s_dursecs + '&dlist=' + escape(dcountstring) + '&ismob=' + ism;
	return sglink;
}

function coa_s_opensurvey() {
	var destpage = coa_s_makelink();
	var sgwin = window.open(destpage,"SG_COA","width=950,resizable=yes,scrollbars=yes,toolbar=no,location=no,directories=no,menubar=no,copyhistory=no");
}

function coa_w3survey() {
	// start time cookie
	coa_s_set_stime();
	// dept count
	coa_s_count_dept();
	// if persistent cookie says already taken survey, bail
	var alldone = coa_surveyreadcookie("surveytaken");
	if ( alldone != null ) { return; }
	var chosenPhrase = "surveyoffered";
	var chosen = coa_surveyreadcookie(chosenPhrase);
	// if cookie says has been chosen
	if ( chosen != null ) {
		// show tab
		var sclosed = coa_surveyreadcookie("surveyclosed");
		if ( (sclosed != null) && (sclosed == '1') ) { 
			coa_w3survey_showtab(); 
			return;
		}
		coa_w3survey_showdiv();
		// return
		return;
	}
	// roll the dice
	var rper = Math.random()*100;
//alert(rper);
	if ( rper < coa_surveyPercentage ) {
	// if less than threshhold
		// set has been chosen cookie
		coa_surveymakecookie(chosenPhrase,"1",null);
		// show div
		coa_w3survey_showdiv();
	}
}

coa_s_addLoadEvent(function() { coa_w3survey(); });