/*
	Check of length of the search line
*/
function validatesearch(city) {
	SearchString = city;
	if (SearchString.value.length == 0 || SearchString.value.replace(/ /gi,"").length < 3) {
		alert("Please enter at least 3 characters!");
		return false;
	}
}

/*
	Function for popup winddow with wind values 
*/
function ShowPop(id)
{
   document.getElementById(id).style.visibility = "visible";
}
function HidePop(id)
{
   document.getElementById(id).style.visibility = "hidden";
}

/*
	Highlight the row and coloumn in the table
	For functions getElementsByClassName, addClassName, and removeClassName
	Copyright Robert Nyman, http://www.robertnyman.com
	Free to use if this text is included
*/
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}
function getElementsByClassName(className, tag, elm){
	var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
	var tag = tag || "*";
	var elm = elm || document;
	var elements = (tag == "*" && elm.all)? elm.all : elm.getElementsByTagName(tag);
	var returnElements = [];
	var current;
	var length = elements.length;
	for(var i=0; i<length; i++){
		current = elements[i];
		if(testClass.test(current.className)){
			returnElements.push(current);
		}
	}
	return returnElements;
}
function addClassName(elm, className){
    var currentClass = elm.className;
    if(!new RegExp(("(^|\\s)" + className + "(\\s|$)"), "i").test(currentClass)){
        elm.className = currentClass + ((currentClass.length > 0)? " " : "") + className;
    }
    return elm.className;
}
function removeClassName(elm, className){
    var classToRemove = new RegExp(("(^|\\s)" + className + "(\\s|$)"), "i");
    elm.className = elm.className.replace(classToRemove, "").replace(/^\s+|\s+$/g, "");
    return elm.className;
}
function makeTheTableHeadsHighlight() {
	// get all the td's in the heart of the table...
	var table = document.getElementById('meteodata');
	var tbody = table.getElementsByTagName('tbody');
	var tbodytds = table.getElementsByTagName('td');
	
	// and loop through them...
	for (var i=0; i<tbodytds.length; i++) {
	
	// take note of their default class name
		tbodytds[i].oldClassName = tbodytds[i].className;
		
	// when someone moves their mouse over one of those cells...
		tbodytds[i].onmouseover = function() {
	
	// attach 'on' to the pointed cell
			addClassName(this,'on');
			
	// attach 'on' to the th in the thead with the same class name
			var topheading = getElementsByClassName(this.oldClassName,'th',table);
			addClassName(topheading[0],'on');
			
	// attach 'on' to the far left th in the same row as this cell
			var row = this.parentNode;
			var rowheading = row.getElementsByTagName('th')[0];
			addClassName(rowheading,'on');
		}
	
	// ok, now when someone moves their mouse away, undo everything we just did.
	
		tbodytds[i].onmouseout = function() {
	
	// remove 'on' from this cell
			removeClassName(this,'on');
			
	// remove 'on' from the th in the thead
			var topheading = getElementsByClassName(this.oldClassName,'th',table);
			removeClassName(topheading[0],'on');

	// remove 'on' to the far left th in the same row as this cell
			var row = this.parentNode;
			var rowheading = row.getElementsByTagName('th')[0];
			removeClassName(rowheading,'on');
		}
	}
}
addLoadEvent(makeTheTableHeadsHighlight);


function initialize(lang) 
{		
	if (navigator.geolocation) 
	{
		navigator.geolocation.getCurrentPosition( function (position) {  
			
			// Did we get the position correctly?
			// alert (position.coords.latitude);
			//alert(position.coords.longitude);
			// To see everything available in the position.coords array:
			// for (key in position.coords) {alert(key)}
			window.location = '/' + lang + '/forecast/pointsearch/?latitude=' + position.coords.latitude + '&longitude=' + position.coords.longitude;
 			
 		}, // next function is the error callback
 			function (error)
 			{
 				switch(error.code) 
 				{
       				case error.TIMEOUT:
 						alert ('Timeout');
 						break;
 					case error.POSITION_UNAVAILABLE:
 						alert ('Position unavailable');
 						break;
 					case error.PERMISSION_DENIED:
 						alert ('Permission denied');
 						break;
 					case error.UNKNOWN_ERROR:
 						alert ('Unknown error');
 						break;
 				}
 			}
 		);
 	} 
 	else 
 	{
	  alert("Sorry, but geolocation services are not supported by your browser or you do not have a GPS device in your computer.");
	}  
}