If i use masterpage in my asp.net application ,how can i call the javascript in the content page?How can i get the document...value in the content page? Please help..

Dear friends, i have one Application Object Application["Discount"] = 5; when i am trying to cast this object into int i use the code (int)Application["Discount"]; but it shows an error Cannot unbox 'Application["Discount"]' as a 'int' any body can give me a description about this error Regards' Chippy