RegExp

["WeberSites LTD" <berber@xxxxxxxxxxxxxxx>]

I'm trying to limit the text someone can submit in a text area with : 


Code:	
if(!preg_match("/^[א-תA-Za-z0-9_():,@\/\.\s\-\" ]*$/i",$FieldValue)) { 

}	


It works well but I'm having problems with the " (double quote). 
If there is a double quote (") it fails.