// JavaScript ©2010 Greg Matthews Design - www.gregmatthews.co.uk
// Licensed to StopGAP Dance Company

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;
}

function toggleDisplay(toggleID,displaySetting,seconds) {
  v_toggleID = toggleID;
	v_displaySetting = displaySetting;
	v_seconds = seconds * 1000;
	setTimeout('document.getElementById(v_toggleID).style.display=v_displaySetting',v_seconds);
}

function turnDivClassOff(divClass) {
  var h, a, b;
  for (h=0; (a = document.getElementsByTagName('div')[h]); h++) {
		b = a.className;
    if (b == divClass) {
			a.style.display = "none";
    }
  }
}

function textSize(z) {
	var d = document.getElementsByTagName('body')[0];
	d.style.fontSize = z;
	createCookie('textsize',z,1)
}

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

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

function toggleCSS(title) {
	var cookie2 = readCookie("appearance");
	if ((cookie2 == null) || (cookie2 == "default")) {
		var title = "hivis";
	} else {
		var title = "default";
	}
	createCookie("appearance", title, 1);
	setActiveCSS(title);
}

function displayPrefs() {
	var cookie1 = readCookie('textsize');
	if (cookie1 == null) { } else {
		var setTextSize = cookie1;
		textSize(setTextSize);
	}
	var cookie2 = readCookie("appearance");
	if (cookie2 == null) {
		var title = "default";
	} else {
		var title = cookie2;
	}
	setActiveCSS(title);
}

// Menu Tabs

function selectedNavTab(navTabID) {
	deselectNavTab();
	v_navTabID = document.getElementById(navTabID);
	v_navTabID.className = "selectedTab";
}

function selectedSubTab(subTabID) {
	deselectSubTab();
	v_subTabID = document.getElementById(subTabID);
	v_subTabID.className = "selectedSub";
}

function deselectNavTab() {
	if (typeof v_navTabID == "undefined") { } else {
		v_navTabID.className = "";
		v_navTabID = "";
	}
	if (typeof v_subTabID == "undefined") { } else {
		v_subTabID.className = ""; 
		v_subTabID = "";
	}
	turnDivClassOff('subNav');
	turnDivClassOff('subSubNav');
}

function deselectSubTab() {
	if (typeof v_subTabID == "undefined") { } else {
		v_subTabID.className = ""; 
		v_subTabID = "";
	}
	turnDivClassOff('subSubNav');
}


// Fade / Cross-fade Subroutines

function fadeIn_Step(v_divID) {
	mozOpacity += 0.10;
	ieOpacity += ieOpacity + 10;
	document.getElementById(v_divID).style.opacity = mozOpacity;
	document.getElementById(v_divID).style.filter = 'alpha(opacity=' + ieOpacity + ')';
}

function fadeOut_Step(v_divID) {
	mozOpacity -= 0.10;
	ieOpacity -= ieOpacity - 10;
	document.getElementById(v_divID).style.opacity = mozOpacity;
	document.getElementById(v_divID).style.filter = 'alpha(opacity=' + ieOpacity + ')';
}

function fadeOut(divID) {
	v_divID = divID;
	mozOpacity = 1;
	ieOpacity = 100;
	delay = 0
	for (i=0; i<10; i++) {
		setTimeout('fadeOut_Step(v_divID)',delay);
		delay = delay + 15;
	}
	setTimeout('document.getElementById(v_divID).style.display="none"',delay);
}

function fadeIn(divID) {
	v_divID = divID;
	mozOpacity = 0;
	ieOpacity = 0;
	delay = 0
	setTimeout('document.getElementById(v_divID).style.display="block"',delay);
	for (i=0; i<10; i++) {
		setTimeout('fadeIn_Step(v_divID)',delay);
		delay = delay + 15;
	}
	setTimeout('document.getElementById(v_divID).style.filter="none"',delay);
}

function crossFade(divID1,divID2) {
	v_divID1 = divID1;
	v_divID2 = divID2;
	fadeOut(v_divID1);
	setTimeout('fadeIn(v_divID2)',150);
}

// Image Roller Subroutine

imageRollerFrame = 1;

function rollerImageFadeIn_Step() {
	imageRoller_mozOpacity += 0.10;
	imageRoller_ieOpacity += 10;
	document.getElementById(v_rollerImageID).style.opacity = imageRoller_mozOpacity;
	document.getElementById(v_rollerImageID).style.filter = "alpha(opacity=" + imageRoller_ieOpacity + ")";
}
function rollerImageFadeOut_Step() {
	imageRoller_mozOpacity -= 0.10;
	imageRoller_ieOpacity -= imageRoller_ieOpacity - 10;
	document.getElementById(v_rollerImageID).style.opacity = imageRoller_mozOpacity;
	document.getElementById(v_rollerImageID).style.filter = "alpha(opacity=" + imageRoller_ieOpacity + ")";
}
function rollerImageReset() {
	document.getElementById(v_rollerImageID).style.display = "block";
	document.getElementById(v_rollerImageID).style.opacity = 0;
	document.getElementById(v_rollerImageID).style.filter = "alpha(opacity=0)";
}

function imageRoller(rollerImageID,numberOfFrames) {
	if (imageRollerFrame < numberOfFrames) { 
		imageRoller_mozOpacity = 0;
		imageRoller_ieOpacity = 0;
		imageRoller_delay = 0;
		v_oldRollerImageID = rollerImageID + imageRollerFrame;
		imageRollerFrame++;
		v_rollerImageID = rollerImageID + imageRollerFrame;
		rollerImageReset();
		for (j=0; j<10; j++) {
			setTimeout('rollerImageFadeIn_Step()',imageRoller_delay);
			imageRoller_delay += 50;
		}
		setTimeout('document.getElementById(v_oldRollerImageID).style.display="none"', imageRoller_delay);
	} else { 
		document.getElementById(rollerImageID + '1').style.display = 'block'; 
		imageRoller_mozOpacity = 1;
		imageRoller_ieOpacity = 100;
		imageRoller_delay = 0;
		imageRollerFrame=1;
		for (j=0; j<10; j++) {
			setTimeout('rollerImageFadeOut_Step()',imageRoller_delay);
			imageRoller_delay += 50;
		}
		setTimeout('document.getElementById(v_rollerImageID).style.display="none"',imageRoller_delay);
	}
}

// News-Bar Riser

var timeoutStartRiser;
var timeoutRiserDown;

function newsRiser() {
	clearTimeout(timeoutStartRiser);
	newsRiserUp();
	timeoutRiserDown = setTimeout('newsRiserDown()',8000);
}

function newsRiserUp() {
	riser_height = 0;
	riser_delay = 30;
	document.getElementById('newsBar').style.display = 'block';
	for (i=0; i<5; i++) {
		setTimeout('newsRiserUp_Step()',riser_delay);
		riser_delay += 30;
	}
}

function newsRiserUp_Step() {
	riser_height += 15;
	riser_height_STR = riser_height + "px";
	document.getElementById('newsBar').style.height = riser_height_STR;
}

function newsRiserDown() {
	clearTimeout(timeoutStartRiser);
	clearTimeout(timeoutRiserDown);
	riser_height = 75;
	riser_delay = 0;
	for (i=0; i<5; i++) {
		setTimeout('newsRiserDown_Step()',riser_delay);
		riser_delay += 30;
	}
	setTimeout('document.getElementById("newsBar").style.display = "none";',riser_delay);
	timeoutStartRiser = setTimeout("newsRiser();",60000);
}

function newsRiserDown_Step() {
	riser_height -= 15;
	riser_height_STR = riser_height + "px";
	document.getElementById('newsBar').style.height = riser_height_STR;
}

// Google Search Bar

function googleSearch() {
  google.load('search', '1');
  google.setOnLoadCallback(function() {
  	google.search.CustomSearchControl.attachAutoCompletion( '000633359855629048887:ocscwwwbsiq', document.getElementById('q'), 'cse-search-box');
  });
}

// Add This JS

var addthis_config = { username: 'stopgapdance', services_exclude:'favorites,email,pdfonline,print', ui_cobrand: 'StopGAP.uk.com', ui_use_addressbook:true, data_track_clickback: true, ui_508_compliant: true }
var addthis_share = { templates: { twitter: '{{title}} {{url}} via @StopGAPdance' } }