[thelist] javscript variables question - easy one

[Brian Delaney]

I have  function that checks for valid date input. function datecheck()

 The function checks for the possibility that a user entered a start and 
end date.

so I declared global variables: globalStart globalEnd

I pass these to datecheck datecheck(globalStart, globalEnd) from the 
main function main()

if both fields are not = NULL then I assign:

globalStart = globaStart + form.txtStartdate.value
globalEnd = globalEnd + form.txtEnddate.value

If i use the alert() to display the value of  these in the datecheck() 
they are correct.

If i use the alert() in the main() calling function they display NULL - 
blank values.

How do I get the function to return or  modify 2 or more variables?

Thanks

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