Remove special characters from a string.

Remove special characters from a string.

function clearText() {
document.formname.fieldname.value=filterNum(document.formname.fieldname.value)

function filterNum(str) {
re = /\$|,|@|#|~|`|\%|\*|\^|\&|\(|\)|\+|\=|\[|\-|\_|\]|\[|\}|\{|\;|\:|\'|\"|\<|\>|\?|\||\\|\!|\$|\./g;
// remove special characters like "$" and "," etc...
return str.replace(re, "");
}
}