/* Kill unnecessary input special characters, single and double quotes, numbers.
EX: onkeyup="valid(this,'spchars')" onblur="valid(this,'spchars')" */

var r={
  'spchars':/[\W]/g,
  'spquotes':/['\''&'\"']/g,
  'spbraks':/[<\<>\>&:\:&=\=&@\@&{\{&}\}&/\/&^\^&%\%]/g,
  'nonumeros':/[^\d]/g
}

function valid(o,w){
  o.value = o.value.replace(r[w],'');
}