Implementation of alert or other response boxes

Implementation of alert or other response boxes $ Lg?> ")>
Boxid ."
". $ Menu [$ index [0]-> $ lg?>
As shown above, I want a message prompt box to be clicked, and then $ menu [$ index [0]-> $ lg may have both Chinese and English content, most of which contain spaces in English, after a tangle, the window will not pop up when a character string with spaces is found in one night. find a solution!
In addition, I want to pass another parameter in the message window, and then combine the two parameters to pin something. Is it feasible? If not, is there any other way to implement it? If none of them work, what if I add a name to the form ...?

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Can you tell me how to rewrite it? it's useless for me to write it based on W3C examples,