// Common functions JS

function focuscol(obj) {
	obj.className = 'focused';
}

function blurcol(obj) {
	obj.className = 'blured';
}

function emptyInput(target,defaultValue){
	if (target.value == defaultValue) {
		target.value = '';
	}
}
function fillInput(target,defaultValue){
	if (target.value == '') {
		target.value = defaultValue;
	}
}

// Hide and Show
function HideAndShow(obj1,obj2) {
	if (document.getElementById(obj1) && document.getElementById(obj2)){
		document.getElementById(obj1).style.display = 'none';
		document.getElementById(obj2).style.display = 'block';
	}	
}

// Show
function showBox(obj) {
	if (document.getElementById(obj)){		
		document.getElementById(obj).style.display = 'block';
	}	
}

// Hide
function hideBox(obj) {
	if (document.getElementById(obj)){		
		document.getElementById(obj).style.display = 'none';
	}	
}

function toggleBox(divId){
	
	var box = document.getElementById(divId);
	
	if (box){
		if (box.style.display == 'block'){
			box.style.display = 'none';
		}
		else {
			box.style.display = 'block';
		}
		return false;  // Evite de suivre le lien
	}
}

// Formulaire contact
function checkAndDisplayBox(divId){
	
	if (divId != "") {	// cas 1 et 2
		var myTargetDiv = document.getElementById(divId);
		if (myTargetDiv) {
			myTargetDiv.style.display = "block";
		}
	}
	else {	// cas 3
		document.getElementById('infoBox_2').style.display = 'none';
		document.getElementById('infoBox_3').style.display = 'none';
	}	
}

// Fonction DOM			cf : http://communaute.medialibs.com/support/forum/post-652.html
function getElementsByClassNameCustom(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;
}

// Implemente la fonction document.getElementsByClassName
document.getElementsByClassName = function(clsName){
    var retVal = new Array();
    var elements = document.getElementsByTagName("*");
    for(var i = 0;i < elements.length;i++){
        if(elements[i].className.indexOf(" ") >= 0){
            var classes = elements[i].className.split(" ");
            for(var j = 0;j < classes.length;j++){
                if(classes[j] == clsName)
                    retVal.push(elements[i]);
            }
        }
        else if(elements[i].className == clsName)
            retVal.push(elements[i]);
    }
    return retVal;
}

function testClass(){

//Ainsi, pour rechercher un span possédant une classe "title", il suffira d'appeler la fonction :
//var spans = getElementsByClassNameCustom('title','span');

//Si vous souhaitez obtenir tous les éléments portant une classe "test", il suffit de ne pas renseigné le second argument :
//var spans = getElementsByClassNameCustom('test');

//Enfin, si vous connaissez l'élément parent, vous pouvez le passer en troisième argument afin d'accélérer le traitement :
/*
var parent = document.getElementById('parent');
var spans = getElementsByClassNameCustom('title','span',parent);
*/
//Attention : Veuillez noter le "s" à Elements. En effet, le résultat de cette fonction sera une collection d'objet DOM.
//Ainsi, il faudra le traiter comme un tableau. Si seul le premier élément nous intéresse, nous utiliserons :
/*
var parent = document.getElementById('parent');
var spans = getElementsByClassNameCustom('title','span',parent);
alert(spans[0].innerHTML);
*/
}

// Implemente la fonction in_array
Array.prototype.in_array = function(p_val) {
  for(var i = 0, l = this.length; i < l; i++) {
  	if(this[i] == p_val) {
  		return true;
  	}
  }
  return false;
}
// Exemple
//var v_array = [ 5, 10, 15, 20, 25];				
//alert(v_array.in_array(10));

// Dectecter IE
function isIE(){

var IE = false

var strChUserAgent = navigator.userAgent;
var intSplitStart = strChUserAgent.indexOf("(",0);
var intSplitEnd = strChUserAgent.indexOf(")",0);
var strChMid = strChUserAgent.substring(intSplitStart, intSplitEnd);

if (strChMid.indexOf("MSIE") != -1) IE = true;

return IE;
}

// Dectecter IE6
function isIE6(){

var IE6 = false

var strChUserAgent = navigator.userAgent;
var intSplitStart = strChUserAgent.indexOf("(",0);
var intSplitEnd = strChUserAgent.indexOf(")",0);
var strChMid = strChUserAgent.substring(intSplitStart, intSplitEnd);

if (strChMid.indexOf("MSIE 6") != -1) IE6 = true;

return IE6;
}

// Détecter + infos navigateur
var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{
			string: navigator.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();	// Lancement
//alert("Browser : " + BrowserDetect.browser + "\n" + "Version : " + BrowserDetect.version + "\n" + "OS : " + BrowserDetect.OS);	// Affichage