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void alert (message: string[, title: string][, errorIcon: bool=false])
Displays an alert box

bool confirm (message: string[, noAsDefault: bool=false][, title: string])
Displays an alert box with Yes and No buttons; returns true for Yes

string decodeURI (uri: string)
Decodes a string created with encodeURI().

string decodeURIComponent (uri: string)
Decodes a string created with encodeURIComponent().

string encodeURI (text: string)
Encodes a string after RFC2396.
Create an UTF-8 ASCII encoded version of this string. The string is converted into UTF-8. Every non-alphanumeric character is encoded as a percent escape character of the form %xx, where xx is the hex value of the character. After the conversion to UTF-8 encoding and escaping, it is guaranteed that the string does not contain characters codes greater than 127. The list of characters not to be encoded is -_.!~*'();/?:@&=+$,#. The method returns false on errors.

string encodeURIComponent (text: string)
Encodes a string after RFC2396.
Create an UTF-8 ASCII encoded version of this string. The string is converted into UTF-8. Every non-alphanumeric character is encoded as a percent escape character of the form %xx, where xx is the hex value of the character. After the conversion to UTF-8 encoding and escaping, it is guaranteed that the string does not contain characters codes greater than 127. The list of characters not to be encoded is -_.!~*'(). The method returns false on errors.

string escape (aString: string)
Creates a URL-encoded string from aString.
In the new string, characters of aString that require URL encoding are replaced with the format %xx, where xx is the hexadecimal value of the character code in the Unicode character set. This format is used to transmit information appended to a URL during, for example, execution of the GET method. Use the unescape() global function to translate the string back into its original format. Returns a string which is aString URL-encoded.

any eval (stringExpression: string)
Evaluates its argument as a JavaScript script, and returns the result of evaluation.
You can pass the result of an object's toSource() method to reconstruct that object.

bool isFinite (expression: number)
Evaluates an expression and reports whether the result is a finite number.
Returns true if the expression is a finite number, false otherwise. False if the value is infinity or negative infinity.

bool isNaN (expression: number)
Evaluates an expression and reports whether the result is "Not-a-Number" (NaN).
Returns true if the result of evaluation is not a number (NaN), false if the value is a number.

bool isXMLName (name: string)
Returns true if the supplied string is a valid XML name.

string localize (what: string[, argument: any])
Localizes a ZString-encoded string and merges additional arguments into the string.

number parseFloat (text: string)
Extracts a floating-point number from a string.
Parses a string to find the first set of characters that can be converted to a floating point number, and returns that number, or NaN if it does not encounter characters that it can converted to a number. The function supports exponential notation.

number parseInt (text: string[, base: number])
Extracts an integer from a string.
Parses a string to find the first set of characters, in a specified base, that can be converted to an integer, and returns that integer, or NaN if it does not encounter characters that it can convert to a number.

string prompt (prompt: string[, default: string][, title: string])
Displays a dialog allowing the user to enter text
Returns null if the user cancelled the dialog, the text otherwise

void setDefaultXMLNamespace (namespace: Namespace)
Defines the default XML namespace.
This is a replacement function for the standard JavaScript statement set default xml namespace.

string unescape (stringExpression: string)
Translates URL-encoded string into a regular string, and returns that string.
Use the escape() global function to URL-encode strings.

string uneval (what: any)
Creates a source code representation of the supplied argument, and returns it as a string.