how to access textfield value of one page from other page

Question

Hi ,

thanks a lot in advance...


i have one question in mind,i don`t  know whether which is simple task or complicated task..


but, i want to put this question in front of you..


here, i am going to calculate summation of 4 textfield values.but 2 textfield values from same html page and other 2 textfield values from another html page.

Please let me know how to do it .




Thanks & Regards
Ravi Gaddam