//------------------------------------------------------------------
// Auteur : Ludovic Martin <ludovic@dreamclic.com> / www.dreamclic.com
// 
// Version             : 2.0
// Date de création    : 26/06/2008
//
// Description         : Fonctions utilitaires
//
//------------------------------------------------------------------

//------------------------------------------------------------------
//Ouvre une fenêtre popup
function popup(x,y,w,h,url){
	return window.open(url,"_blank","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,top="+y+",left="+x+",width="+w+",height="+h);
}
//------------------------------------------------------------------
//Ouvre une fenêtre popup redimentionnable
function popupResizable(x,y,w,h,url){
	return window.open(url,"_blank","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,top="+y+",left="+x+",width="+w+",height="+h);
}
//------------------------------------------------------------------
//Import d'un script JS
function include(fileName){
	document.write("<script type=\"text/javascript\" src=\""+fileName+"\"></script>"); 
}
//------------------------------------------------------------------
//Retourn un objet XMLHttpRequest
function getHttpObject(){
	var result=null;
	if(window.XMLHttpRequest){
		result=new XMLHttpRequest(); 
		if(result.overrideMimeType)
			result.overrideMimeType("text/xml");
	}else if(window.ActiveXObject){
		try{
			result=new ActiveXObject("Msxml2.XMLHTTP");
		}catch(ex){
			result=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return result;
}
//------------------------------------------------------------------
function utf8_decode ( str_data ) {
	var tmp_arr = [], i = 0, ac = 0, c1 = 0, c2 = 0, c3 = 0;
	
	str_data += '';
	
	while ( i < str_data.length ) {
		c1 = str_data.charCodeAt(i);
		if (c1 < 128) {
			tmp_arr[ac++] = String.fromCharCode(c1);
			i++;
		} else if ((c1 > 191) && (c1 < 224)) {
			c2 = str_data.charCodeAt(i+1);
			tmp_arr[ac++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63));
			i += 2;
		} else {
			c2 = str_data.charCodeAt(i+1);
			c3 = str_data.charCodeAt(i+2);
			tmp_arr[ac++] = String.fromCharCode(((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
			i += 3;
		}
	}
 
	return tmp_arr.join('');
}
//------------------------------------------------------------------
function base64_decode( data ) {
	var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
	var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, dec = "", tmp_arr = [];
	if (!data) {
		return data;
	}
	data += '';
	do {  // unpack four hexets into three octets using index points in b64
		h1 = b64.indexOf(data.charAt(i++));
		h2 = b64.indexOf(data.charAt(i++));
		h3 = b64.indexOf(data.charAt(i++));
		h4 = b64.indexOf(data.charAt(i++));
		bits = h1<<18 | h2<<12 | h3<<6 | h4;
		o1 = bits>>16 & 0xff;
		o2 = bits>>8 & 0xff;
		o3 = bits & 0xff;
		if (h3 == 64) {
			tmp_arr[ac++] = String.fromCharCode(o1);
		} else if (h4 == 64) {
			tmp_arr[ac++] = String.fromCharCode(o1, o2);
		} else {
			tmp_arr[ac++] = String.fromCharCode(o1, o2, o3);
		}
	} while (i < data.length);
	dec = tmp_arr.join('');
	dec = this.utf8_decode(dec);
	return dec;
}
//------------------------------------------------------------------
// Applique une ouverture en popup pour les liens ayant l'attribut rel="popup"
function relPopup() {
	$("a[rel='popup']").click(function() {
		window.open(this.href);
		return false;
	});
}
//------------------------------------------------------------------
// Décrypte et remplit tous les liens ayant l'attribut rel=email
function relMail() {
	$("a[rel='email']").each(function() {
		var email = base64_decode($(this).attr("href"));
		$(this).attr("href", "mailto:"+email);
		if($.trim($(this).html())=='')
			$(this).text(email);
	});
}
//------------------------------------------------------------------
// Applique un style de centrage vertical sur les éléments de class "js-vertical-align"
function doJQVerticalAlign(){
	$(".js-vertical-align").each(function(){
		var ah = $(this).height();
		var ph = $(this).parent().height();
		var mh = (ph - ah) / 2;
		$(this).css("padding-top", mh);
	});
}
//------------------------------------------------------------------