Hi every body first of all I inform you that I have any idea about JS but I know that can help me to much in my problem that why I need you help following my html code I want any one to help me how to use JS to make some calculation for example a2*a4 a1*a3 my html code : HTML: <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=Windows-1256"> <title>loan page</title> <style type="text/css"> div#container { width: 994px; position: relative; margin-top: 0px; margin-left: auto; margin-right: auto; text-align: left; } body { text-align: center; margin: 0; background-color: #FFFFFF; color: #000000; } </style> <style type="text/css"> a { color: #C8D7EB; text-decoration: underline; } a:visited { color: #C8D7EB; } a:active { color: #C8D7EB; } a:hover { color: #376BAD; text-decoration: underline; } </style> <style type="text/css"> #wb_Form1 { background-color: #FAFAFA; border: 0px #000000 solid; } #Combobox1 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color: #000000; font-family: Arial; font-size: 13px; } #Editbox1 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color :#000000; font-family: Arial; font-size: 13px; text-align: left; vertical-align: middle; } #Editbox2 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color :#000000; font-family: Arial; font-size: 13px; text-align: left; vertical-align: middle; } #Combobox2 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color: #000000; font-family: Arial; font-size: 13px; } #Button1 { color: #000000; font-family: Arial; font-size: 13px; } #Button2 { color: #000000; font-family: Arial; font-size: 13px; } #Editbox3 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color :#000000; font-family: Arial; font-size: 13px; text-align: left; vertical-align: middle; } #Editbox4 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color :#000000; font-family: Arial; font-size: 13px; text-align: left; vertical-align: middle; } #Editbox5 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color :#000000; font-family: Arial; font-size: 13px; text-align: left; vertical-align: middle; } #Editbox6 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color :#000000; font-family: Arial; font-size: 13px; text-align: left; vertical-align: middle; } #Editbox7 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color :#000000; font-family: Arial; font-size: 13px; text-align: left; vertical-align: middle; } #Editbox8 { border: 1px #C0C0C0 solid; background-color: #FFFFFF; color :#000000; font-family: Arial; font-size: 13px; text-align: left; vertical-align: middle; } #wb_Text1 { background-color: transparent; border: 0px #000000 solid; padding: 0; } #wb_Text1 div { text-align: left; } #wb_Text2 { background-color: transparent; border: 0px #000000 solid; padding: 0; } #wb_Text2 div { text-align: left; } #wb_Text3 { background-color: transparent; border: 0px #000000 solid; padding: 0; } #wb_Text3 div { text-align: left; } #wb_Text4 { background-color: transparent; border: 0px #000000 solid; padding: 0; } #wb_Text4 div { text-align: left; } #wb_Text5 { background-color: transparent; border: 0px #000000 solid; padding: 0; } #wb_Text5 div { text-align: left; } </style> </head> <body> <div id="container"> <a href="http://www.wysiwygwebbuilder.com" target="_blank"><img src="images/builtwithwwb8.gif" alt="WYSIWYG Web Builder" style="position:absolute;left:451px;top:735px;width:88px;height:31px;border-width:0;z-index:250"></a> <div id="wb_Form1" style="position:absolute;left:304px;top:64px;width:398px;height:455px;z-index:18;"> <form name="Form1" method="post" action="" enctype="text/plain" target="_self" id="Form1"> <select name="a3" size="1" id="Combobox1" style="position:absolute;left:290px;top:139px;width:96px;height:21px;z-index:0;"> <option selected value="35%">35%</option> <option value="50%">50%</option> </select> <input type="text" id="Editbox1" style="position:absolute;left:284px;top:79px;width:94px;height:19px;line-height:19px;z-index:1;" name="a1" value=""> <input type="text" id="Editbox2" style="position:absolute;left:108px;top:80px;width:94px;height:19px;line-height:19px;z-index:2;" name="a2" value=""> <select name="a4" size="1" id="Combobox2" style="position:absolute;left:115px;top:140px;width:96px;height:21px;z-index:3;"> <option value="5%">year</option> <option value="8%">2 year</option> <option value="11%">3 year</option> <option value="14%">4 year</option> <option value="17%">5 year</option> <option selected value="20%">6 year</option> </select> <input type="reset" id="Button1" name="a5" value="empty" style="position:absolute;left:82px;top:193px;width:96px;height:25px;z-index:4;"> <input type="submit" id="Button2" name="a6" value="submit" style="position:absolute;left:215px;top:193px;width:96px;height:25px;z-index:5;"> <input type="text" id="Editbox7" style="position:absolute;left:263px;top:271px;width:94px;height:19px;line-height:19px;z-index:6;" name="a9" value=""> <input type="text" id="Editbox6" style="position:absolute;left:145px;top:272px;width:94px;height:19px;line-height:19px;z-index:7;" name="a8" value=""> <input type="text" id="Editbox3" style="position:absolute;left:34px;top:274px;width:94px;height:19px;line-height:19px;z-index:8;" name="a7" value=""> <input type="text" id="Editbox4" style="position:absolute;left:35px;top:350px;width:94px;height:19px;line-height:19px;z-index:9;" name="a10" value=""> <input type="text" id="Editbox5" style="position:absolute;left:148px;top:348px;width:94px;height:19px;line-height:19px;z-index:10;" name="a11" value=""> <input type="text" id="Editbox8" style="position:absolute;left:260px;top:351px;width:94px;height:19px;line-height:19px;z-index:11;" name="a12" value=""> <div id="wb_Text1" style="position:absolute;left:116px;top:25px;width:159px;height:24px;z-index:12;"> <span style="color:#000000;font-family:Arial;font-size:21px;">Calculating loan</span></div> <div id="wb_Text2" style="position:absolute;left:8px;top:81px;width:102px;height:16px;z-index:13;"> <span style="color:#000000;font-family:Arial;font-size:13px;">value of the loan</span></div> <div id="wb_Text3" style="position:absolute;left:228px;top:83px;width:48px;height:16px;z-index:14;"> <span style="color:#000000;font-family:Arial;font-size:13px;">Salary</span></div> <div id="wb_Text4" style="position:absolute;left:6px;top:143px;width:111px;height:16px;z-index:15;"> <span style="color:#000000;font-family:Arial;font-size:13px;">Repayment period</span></div> <div id="wb_Text5" style="position:absolute;left:217px;top:142px;width:75px;height:16px;z-index:16;"> <span style="color:#000000;font-family:Arial;font-size:13px;">Interest rate</span></div> </form> </div> </div> </body> </html> please help me
