javascript - Problem with at sign in div name -

I have a page in which there are some divisions, each div ID starts with the word divfor and then there is a suffix . These suffixes come from databases just like divorjon, divorjam ... etc.

My problem occurs when I try to load something in that division, causing this problem if it contains @ sign, therefore, if I do something below:

  $ ("# divfor" + divsuffix) .html ('some text goes here.');   
 If there is a divname  divforjohn , but if there is a divname  divforjohn @ x , then it does not make any problem. > 
 So, how can I address the ID on which his ID is signed @ Or its a range / jquery / bug?  
 Thx.   
 
 
 element with javascript in  id = "divforjohn @x"  You can do this via  document.querySelectorAll  or via jQuery / Sizzle) to  @ , like this:  
  $ ( '# Divforjohn \\ @ x')   
 Demo:  
 In addition, the accepted answer is incorrect ??? This ID naming rule states that HTML 4 was included in the device. The thing is,  Browsers have never implemented it , so these rules in HTML5 are no longer restrictive. Valid characters are completely safe to use in the values ​​for  id  or  category   
 Unless you know what you are? Are again.