So what I would like to do is have the value in [code]<INPUT TYPE = Text NAME = taxes SIZE = 6 value ="">[/code]to display 0 when the check box is unchecked As of right now the checkbox (checked or unchecked) will update the total value, which it needs to do. Here is EVERYTHING because I'm not sure what you would like to look at. [code]<html> <head> <SCRIPT LANGUAGE="JavaScript" type="text/javascript" src="script1.js"></SCRIPT> <SCRIPT language = JavaScript> function calculate() { A = document.FrontPage_Form1.book_1.value B = document.FrontPage_Form1.book_2.value C = document.FrontPage_Form1.book_3.value A = Number(A) B = Number(B) C = Number(C) // Subtotal D = ((A * 25.99) + (B * 25.99) + (C * 25.99)) document.FrontPage_Form1.subtotal.value = D // Shipping E = Math.ceil((A + B + C)/3) F = (E * 8.95) document.FrontPage_Form1.shipping.value = F // Colorado sales tax G = (D * .079) var num = G; var tax = num.toFixed(2); document.FrontPage_Form1.taxes.value = tax // Total H = (D + F) if (document.FrontPage_Form1.colo_sales_tax.checked) H = (H + G) var num = H; var result = num.toFixed(2); document.FrontPage_Form1.totals.value = result } </SCRIPT> </head> <body> <form method="POST" name="FrontPage_Form1" onSubmit="return FrontPage_Form1_Validator(this)" target="_self"><font size="2"> <INPUT TYPE = Text NAME = book_1 SIZE = 2 value = ""> Book 1 <p><INPUT TYPE = Text NAME = book_2 SIZE = 2 value = ""> Book 2</p> <p><INPUT TYPE = Text NAME = book_3 SIZE = 2 value = ""> Book 3</p> <p><INPUT TYPE = Text NAME = subtotal SIZE = 6 value =""> Subtotal</p> <p><INPUT TYPE = Text NAME = taxes SIZE = 6 value =""> <INPUT TYPE = Checkbox NAME = colo_sales_tax value = "">Colorado Residents Check This Box For State Taxes</p> <p><INPUT TYPE = Text NAME = shipping SIZE = 6 value =""> Shipping</p> <p><INPUT TYPE = Text NAME = totals SIZE = 6 value = ""> <Input Type = Button NAME = Totals VALUE = "Total" onClick = calculate()></font></p> </form> </body> </html>[/code] Sorry I'm not a clean coder
