// cette fonction permet de lire un cookie
	function Get_Cookie( name ) {
		var start = document.cookie.indexOf( name + "=" );
		var len = start + name.length + 1;
		if ( ( !start ) &&
		( name != document.cookie.substring( 0, name.length ) ) )
		{
		return null;
		}
		if ( start == -1 ) return null;
		var end = document.cookie.indexOf( ";", len );
		if ( end == -1 ) end = document.cookie.length;
		return unescape( document.cookie.substring( len, end ) );
	}
	
	// cette fonction permet de supprimer un cookie
	function Delete_Cookie( name, path, domain ) {
		if ( Get_Cookie( name ) ) document.cookie = name + "=" +
		( ( path ) ? ";path=" + path : "") +
		( ( domain ) ? ";domain=" + domain : "" ) +
		";expires=Thu, 01-Jan-1970 00:00:01 GMT";
	}
	
	function Set_Cookie( name, value, expires, path, domain, secure ) 
	{
		// set time, it's in milliseconds
		var today = new Date();
		today.setTime( today.getTime() );
		
		/*
		if the expires variable is set, make the correct 
		expires time, the current script below will set 
		it for x number of days, to make it for hours, 
		delete * 24, for minutes, delete * 60 * 24
		*/
		if ( expires )
		{
			expires = expires * 1000 * 60 * 60 * 24;
		}
		var expires_date = new Date( today.getTime() + (expires) );
		document.cookie = name + "=" +escape( value ) +
		( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + 
		( ( path ) ? ";path=" + path : "" ) + 
		( ( domain ) ? ";domain=" + domain : "" ) +
		( ( secure ) ? ";secure" : "" );
	}