// filtre tous les inputs ayant l'attribut alphanum-only

	on("input","[alphanum-only]",function(e){
		let obj=e.target;
		let cursor_position=obj.selectionStart;
		obj.value=obj.value.replace(new RegExp(/[^a-zA-z0-9\-_ ]/g), "");
		obj.selectionStart=cursor_position;
		obj.selectionEnd=cursor_position;
	});