/*------------------------------------------------------*
  *-------FONCTIONS JAVASCRIPT    ----*
  *------------------------------------------------------*/


/*1 Pop Up centrée début (utilisée pour infos légales et pages plans) */

function popup(page,largeur,hauteur,options)
{
	var top=(screen.height-hauteur)/2;
	var left=(screen.width-largeur)/2;
	window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options);
}

/*1 Pop Up centrée FIN  */

/*----------------------------------------------------*/

function URLDecode(url) //function decode URL
{
	// Replace + with ' '
	// Replace %xx with equivalent character
	// Put [ERROR] in output if %xx is invalid.
	var HEXCHARS = "0123456789ABCDEFabcdef";
	var encoded = url;
	var plaintext = "";
	var i = 0;
	while (i < encoded.length) {
	var ch = encoded.charAt(i);
	if (ch == "+") {
	plaintext += " ";
	i++;
	} else if (ch == "%") {
	if (i < (encoded.length-2)
	&& HEXCHARS.indexOf(encoded.charAt(i+1)) != -1
	&& HEXCHARS.indexOf(encoded.charAt(i+2)) != -1 ) {
	plaintext += unescape( encoded.substr(i,3) );
	i += 3;
	} else {
	alert( 'Bad escape combination near ...' + encoded.substr(i) );
	plaintext += "%[ERROR]";
	i++;
	}
	} else {
	plaintext += ch;
	i++;
	}
	} // while
	
	return plaintext;
};