jquery initial load

originally I have this one(hello2.asp) below:

function CalTotals(pos){
var subTotal = Number(jQuery('input:hidden[name=txtSubTotalHit]').val()) + Number(jQuery('input:hidden[name=txtExtnHit'+pos+']').val());    

And now,

I hope to do something like

function CalTotals(pos){
if the webpage is first loaded then
var subTotal = Number(jQuery('input:hidden[name=txtSubTotalHit]').val());    
var subTotal = Number(jQuery('input:hidden[name=txtSubTotalHit]').val()) + Number(jQuery('input:hidden[name=txtExtnHit'+pos+']').val());    

end if

When hello1.asp will post a data to hello2.asp

the webpage is using jquery 1.4 and I hope to have first loaded event within CalTotals function in jquery.

Is it possible?
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Julian HansenCommented:
If I understand your question correctly you want to change your CalTotals JavaScript function to perform one calculation on first load and a different one on subsequent requests.

What I need to clarify is what you mean by this
When hello1.asp will post a data to hello2.asp
How does one posting to the other fit into the equation and given that posting is involved why are we talking about JavaScript and not  .ASP?

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