Online Large Integer Calculator Files

Contact:       Howard_Cary_Morris@hotmail.com
project page:  https://sourceforge.net/projects/onlinelargeint
Source html:   IntCalc.html
Javascript:    ArithL.txt
General Description:
Basic Online Integer Calculator
	Integer size - no limit except for memory machine can handle
	Arithmetic functions:
		+ Add 
		- Subtract
		* Multiply
		/ divide
		mod (modular arithmetic) same as divide but gives remainder not quotient
		+- If last value in stack is a number (vesus an operation), the sugn is flipped
		( Open parenthises
		) close last parenthesis
		= finish current calculation (closes all prenthesis and may may some other defaults)
	Calculator functions:
		RM Recall memory - may place in "Enter Integer" textarea
		SM Save memory - saves last number entered/calculated - you may give memory value a name
			Warning: Will replace value if memory name already used
			Warning: avoid characters < (less than), \ (back slash), and & (amper sign)
			Warning: If a partial calculation has been done, that will be current number calculated
		CM Clear Memory - Drops all memory names and values
		CE Clear entry - removes last item in stack, may be a number of arithmetic function
			Note: You can see what is currently in stack
		CS Clear stack - puts program back to initial state except for memory
Installation:
	On personal PC: copy Source html and Javascript into same folder 
		- open (double-click) source html to start
	On Server site: Same as above
		however may wish to rename IntCalc.html to index.html for stand alone application
Oddities, may change:
	The integer process just the digits 0 through 9 and a minus sign, '-' or '(', and ignores rest
		minus sign may be anywhere in number, forces sign to negative unless value is zero
	If you press an operation, exept parenthises, twice in a row the program reuses last number calcualted
	If you press "process integer" twice in a row the program reuses last operation (+ - * /) pressed
		default is + add when program begins and after clear stack
Future plans:
	1) Add hide/show help to screen
	2) May add square or cube button, adding raise to a large power is just asking for trouble
		For now pressing * , multiply, twice in a row can square the last number in the stack
	3) If the user entered an integer, but pressed an operation instead of 'process integer',
		may fetch the unprocessed integer instead of using last number entered/calculated
	4) May want to intercept pressed keys and intepret some of them as if pressed operation
		i.e., pressing the + key may act same as pressing the + Add button
		However, the '-' and '(' keys would force program to change entering negative numbers