/********************************************************************************************************************
  AJAX XMLHttpRequest Objekt
********************************************************************************************************************/
var xmlHttp = null;
try {
    // Mozilla, Opera, Safari sowie Internet Explorer (ab v7)
    xmlHttp = new XMLHttpRequest();
} catch(e) {
    try {
        // MS Internet Explorer (ab v6)
        xmlHttp  = new ActiveXObject("Microsoft.XMLHTTP");
    } catch(e) {
        try {
            // MS Internet Explorer (ab v5)
            xmlHttp  = new ActiveXObject("Msxml2.XMLHTTP");
        } catch(e) {
            xmlHttp  = null;
        }
    }
}




/********************************************************************************************************************
  SUCHE
********************************************************************************************************************/
var currentSearchSelection = 0;
var currentSearch;
var lastSearchNavigation;

document.onkeydown = function(e) {
	if (!e || !e.keyCode) return true;
    var k = e.keyCode;
    if(k == 38 && k == 40) {
        return false;
    }
}

function doSearchNav(e) {
	if(document.getElementById('searchRecommendation').style.display == 'none') return;
    if(e.keyCode == 40) {
    	if (new Date().getTime() - lastSearchNavigation < 100) return;
    	lastSearchNavigation = new Date().getTime();
    	dehighlightSearchResults();
        if (document.getElementById('searchRes' + (currentSearchSelection + 1))) currentSearchSelection++;
        else if (currentSearchSelection == 0) {
        	currentSearchSelection = 1;
        }
        else {
        	currentSearchSelection = 0;
        	document.getElementById('searchbox').value = currentSearch;
        	return;
        }
        document.getElementById('searchbox').value = document.getElementById('searchRes' + currentSearchSelection).innerText;
        document.getElementById('searchRes' + currentSearchSelection).style.backgroundColor = '#dddddd';
    }
    else if (e.keyCode == 38) {
    	if (new Date().getTime() - lastSearchNavigation < 100) return;
    	lastSearchNavigation = new Date().getTime();
    	dehighlightSearchResults();
    	if (document.getElementById('searchRes' + (currentSearchSelection - 1))) currentSearchSelection--;
    	else if (currentSearchSelection == 0) {
    		currentSearchSelection = 1;
    		while(document.getElementById('searchRes' + currentSearchSelection)) {
    			currentSearchSelection++;
    		}
    		currentSearchSelection--;
    	}
    	else {
    		currentSearchSelection = 0;
        	document.getElementById('searchbox').value = currentSearch;
        	return;
    	}
    	document.getElementById('searchbox').value = document.getElementById('searchRes' + currentSearchSelection).innerText;
    	document.getElementById('searchRes' + currentSearchSelection).style.backgroundColor = '#dddddd';
    }
}

function doSubmitSearch() {
	if (currentSearchSelection == 0 || currentSearch == document.getElementById('searchbox').value) return true;
	document.getElementById('searchRes' + currentSearchSelection).onclick();
	return false;
}

function doSearch(e) {
	if (e.keyCode >= 38 && e.keyCode <= 40) return;
	if (e.keyCode == 27) {
		currentSearchSelection = 0;
		document.getElementById('searchbox').value = currentSearch;
		document.getElementById('searchRecommendation').style.display = 'none';
		return;
	}
	currentSearch = document.getElementById('searchbox').value;
	if (xmlHttp) {
		xmlHttp.open('GET', '/search.php?s=' + currentSearch, true);
		xmlHttp.onreadystatechange = function () {
			if (xmlHttp.readyState == 4) {
				document.getElementById('searchRecommendation').innerHTML = xmlHttp.responseText;
				if (xmlHttp.responseText.length > 0) {
					document.getElementById('searchRecommendation').style.display = 'block';
				} else {
					document.getElementById('searchRecommendation').style.display = 'none';
				}
			}
		};
		xmlHttp.send(null);
	}
}

function dehighlightSearchResults() {
	var i = 0;
	while(true) {
	  i++;
	  if (document.getElementById('searchRes' + i)) document.getElementById('searchRes' + i).style.backgroundColor = '#ffffff';
	  else break;
	}
}




/********************************************************************************************************************
  PREIS DETAILS ANZEIGEN
********************************************************************************************************************/
function togglePriceDetails(id) {
	if (document.getElementById('priceDetails_' + id).style.display == 'none') {
		document.getElementById('priceDetails_' + id).style.display = 'block';
	}
	else {
		document.getElementById('priceDetails_' + id).style.display = 'none';
	}
}




/********************************************************************************************************************
  FALSCHER PREIS MELDEN
********************************************************************************************************************/
function toggleWrongPriceInput(id) {
	if (document.getElementById('notifyWrongPriceInput_' + id).style.display == 'none') {
		document.getElementById('notifyWrongPriceInput_' + id).style.display = 'block';
		if (!document.getElementById('wrongPriceComment_' + id).disabled) document.getElementById('wrongPriceComment_' + id).focus();
	}
	else {
		document.getElementById('notifyWrongPriceInput_' + id).style.display = 'none';
	}
}

function sendWrongPriceInfo(id) {
	document.getElementById('wrongPriceButton_' + id).disabled = true;
	document.getElementById('wrongPriceComment_' + id).disabled = true;
	if (xmlHttp) {
		var params = 'Id=' + id + '&Text=' + document.getElementById('wrongPriceComment_' + id).value;
		xmlHttp.open('POST', '/wrongprice.php', true);
		xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		xmlHttp.setRequestHeader('Content-Length', params.length);
		xmlHttp.onreadystatechange = function () {
			if (xmlHttp.readyState == 4) {
				document.getElementById('notifyWrongPriceInput_' + id).style.display = 'none';
			}
		};
		xmlHttp.send(params);
	}
}




/********************************************************************************************************************
  EMAIL-SERVICE
********************************************************************************************************************/
function toggleEmailService() {
	if (document.getElementById('emailService').style.display == 'none') {
		document.getElementById('emailService').style.display = 'block';
		if (!document.getElementById('emailServiceEmail').disabled) document.getElementById('emailServiceEmail').focus();
	}
	else {
		document.getElementById('emailService').style.display = 'none';
	}
}

function registerForEmailService(productId) {
	if (!isValidEmail(document.getElementById('emailServiceEmail').value)) {
		document.getElementById('emailServiceEmail').style.backgroundColor = '#ffe1e1';
		document.getElementById('emailServiceEmail').focus();
		return;
	}
	document.getElementById('emailServiceButton').disabled = true;
	document.getElementById('emailServiceEmail').disabled = true;
	document.getElementById('emailServiceEmail').style.backgroundColor = '#f6f6f6';
	if (xmlHttp) {
		var params = 'Pid=' + productId + '&Email=' + document.getElementById('emailServiceEmail').value;
		xmlHttp.open('POST', '/emailservice.php', true);
		xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		xmlHttp.setRequestHeader('Content-Length', params.length);
		xmlHttp.onreadystatechange = function () {
			if (xmlHttp.readyState == 4) {
				document.getElementById('emailService').style.display = 'none';
				alert(xmlHttp.responseText);
			}
		};
		xmlHttp.send(params);
	}
}

function isValidEmail(email) {	
    var pattern=/^([a-zA-Z0-9_.-])+@([a-zA-Z0-9_.-])+\.([a-zA-Z])+([a-zA-Z])+/;
    if (pattern.test(email)) return true;
	else return false;
}




/********************************************************************************************************************
  VOTINGS
********************************************************************************************************************/
var voted = false;
var starsVoted = 0;

function toggleWriteComment() {
	if (document.getElementById('commentForm').style.display == 'none') {
		document.getElementById('commentForm').style.display = 'block';
		if (!document.getElementById('commentName').disabled) document.getElementById('commentName').focus();
	}
	else {
		document.getElementById('commentForm').style.display = 'none';
	}
}

function voteStar(star) {
	if (voted) return;
	for(i = 1; i <= star; i++) {
		document.getElementById('voteStar' + i).src = '/images/symbols/black_star_full.gif';
	}
	for(i = star + 1; i <= 6; i++) {
		document.getElementById('voteStar' + i).src = '/images/symbols/black_star_empty.gif';
	}
	starsVoted = star;
}

function submitShopVote(shopId) {
	submitVote("Shop", shopId);
}

function submitProductVote(productId) {
	submitVote("Product", productId);
}

function submitVote(entityType, entityId) {
	if (document.getElementById('commentName').value.length < 5) {
		document.getElementById('commentName').style.backgroundColor = '#ffe1e1';
		document.getElementById('commentName').focus();
		return;
	}
	document.getElementById('commentName').style.backgroundColor = '#f6f6f6';
	if (starsVoted == 0) {
		for(i = 1; i <= 6; i++) {
			document.getElementById('voteStar' + i).src = '/images/symbols/red_star_empty.gif';
		}
		return;
	}
	document.getElementById('commentSubmitButton').disabled = true;
	document.getElementById('commentName').disabled = true;
	document.getElementById('commentText').disabled = true;
	document.getElementById('commentName').style.backgroundColor = '#f6f6f6';
	voted = true;
	if (xmlHttp) {
		var params = (entityType == 'Shop' ? 'Sid=' : 'Pid=') + entityId + '&Name=' + document.getElementById('commentName').value + '&Comment=' + document.getElementById('commentText').value + '&Stars=' + starsVoted;
		xmlHttp.open('POST', '/vote.php', true);
		xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		xmlHttp.setRequestHeader('Content-Length', params.length);
		xmlHttp.onreadystatechange = function () {
			if (xmlHttp.readyState == 4) {
				document.getElementById('commentForm').style.display = 'none';
				alert(xmlHttp.responseText);
			}
		};
		xmlHttp.send(params);
	}
}




/********************************************************************************************************************
  Live-Ticker auf Startseite
********************************************************************************************************************/
var liveTickerPos = 0;

function animateLiveTicker() {
  document.getElementById('tickerText1').style.left = (document.getElementById('tickerText1').style.left.substring(0, document.getElementById('tickerText1').style.left.indexOf('px')) - 1) + 'px';
  document.getElementById('tickerText2').style.left = (document.getElementById('tickerText2').style.left.substring(0, document.getElementById('tickerText2').style.left.indexOf('px')) - 1) + 'px';

  if (document.getElementById('tickerText2').offsetLeft == 10) {
    var tickerSpan1 = document.getElementById('tickerText1');
    document.getElementById('navigationContextHome').removeChild(tickerSpan1);
    document.getElementById('tickerText2').style.left = '0px'; 
    tickerSpan1.style.left = '0px';
    document.getElementById('navigationContextHome').appendChild(tickerSpan1);
  } 
  else if (document.getElementById('tickerText1').offsetLeft == 10) {
    var tickerSpan2 = document.getElementById('tickerText2');
    document.getElementById('navigationContextHome').removeChild(tickerSpan2);
    document.getElementById('tickerText1').style.left = '0px';
    tickerSpan2.style.left = '0px';
    document.getElementById('navigationContextHome').appendChild(tickerSpan2);
  }
}

/********************************************************************************************************************
  Externe Links XHTML valid
********************************************************************************************************************/
function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
		if (
			anchor.getAttribute("href") && ( 
			anchor.getAttribute("rel") == "extern")
			)
		anchor.target = "_blank";
	}
}

window.onload = function() {
	externalLinks();
}

var blinkSearchTimeout;
function blinkSearch(i) {
	if (!i) i = 0;
	if (i < 8) {
	  blinkSearchTimeout = setTimeout(function() { blinkSearch(i + 1); }, 500);
	  document.getElementById('searchselect').style.color = i % 2 == 0 ? 'white' : '#5a97d6';
	} else document.getElementById('searchselect').focus();
}