Please help me with the Condition Loop

programming flash
1

I want to create a loop to reject the email addresses that start or end with an @ character, contain multiple @ characters or contain no . (dot) characters. I have a problem with the condition for contain multiple @ characters or contain no . (dot)characters. My conditions don’t run correctly. Please help me. Thank you very much.


[COLOR=#0070c0][FONT=serif]var address = "me@mock.org";[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]var i = 0;[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]var count = 0;[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]var total =0;[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]var isValidAddress = false;[/FONT][/COLOR]
 
[COLOR=#0070c0][FONT=serif]while (i< address.length )[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]{[/FONT][/COLOR]
 
[COLOR=#0070c0][FONT=serif]          if (address.charAt(0) == "@" || address.charAt(address.length - 1) == "@" )[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]          {[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      trace("first or last character is @. Invalid email address.");[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      break;[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]          }[/FONT][/COLOR]
 
[COLOR=#0070c0][FONT=serif]          else if (address.charAt(i) != ".")[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]          {[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      trace ("it doesn't contain a dot");[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      break;[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]          }[/FONT][/COLOR]
 
[COLOR=#0070c0][FONT=serif]          else if  (address.charAt(i) == "@" )[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]          {           [/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      count =1;         [/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      total +=count;[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      if (total ==1) [/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      {[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                                  isValidAddress = true;[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                                  trace("Valid email address.");[/FONT][/COLOR]
 
[COLOR=#0070c0][FONT=serif]                      }[/FONT][/COLOR]
[COLOR=#0070c0][FONT=serif]                      trace("Total is " + total);[/FONT][/COLOR]
 
[COLOR=#0070c0][FONT=serif]          }[/FONT][/COLOR]
 
[COLOR=#0070c0][FONT=serif]          i++;[/FONT][/COLOR]
 
[COLOR=#0070c0][FONT=serif]}[/FONT][/COLOR]