JavaScript Program to Calculate the Sum Total

In this scripting program, you will learn how to calculate the sum total of the 5 subjects. Each individually entered by the users and finally, the user will calculate the total by clicking on the total button.
<html> <head> <script> function calculateMarks(math, science, english, nepali, social) { total = parseInt(math) + parseInt(science) + parseInt(english) + parseInt(nepali) + parseInt(social) var r=document.getElementById("txttotal"); r.value=total; return total } </script> </head> <body> <form name="frmtotal"> Math<input type="text" name="txtmath" /><br /> Science<input type="text" name="txtscience" /><br /> English<input type="text" name="txtenglish" /><br /> Nepali<input type="text" name="txtnepali" /><br /> Social<input type="text" name="txtsocial" /><br /> <input type="button" value="Total" onclick="calculateMarks(document.frmtotal.txtmath.value, document.frmtotal.txtscience.value, document.frmtotal.txtenglish.value, document.frmtotal.txtnepali.value, document.frmtotal.txtsocial.value)" /> total<input type="text" id="txttotal" /> </form> </body> </html>