登 录
花费总计:
// TITLE: Order Form with Checkbox Item Selection // An order form which utilizes checkboxes for making a selection. This method only allows // one quantity of any item to be ordered. // Script updates the order total as the visitor checks and unchecks the selections. // Also note that the order total can not be manually altered by the visitor.
// Custom scripting by Paul DeBrino of Infinity Research and Development, Inc. // We also have a netscrape version for purchase, which works with both NS and IE. // For other scripts, or to place an order for customized scripts such as // on-line form scripting, please contact the owner via Email at: info @ infinity-rd.com // If you wish to use this script, kindly keep these comments and (C)opyright within the // source code. Permission granted for http://javascript.internet.com to publish this script.
//Define global form total: var form_total=0;
//Define function to manipulate the form total per item selected/deselected: function CheckChoice(whichbox) {
//This code will dump all Document Object Model properties for the active checkbox: //Remove the "//" marks *after* "start of commented section ... // up to but *not* including "end of commented section" to make this work. //START OF COMMENTED SECTION: //for (xx in whichbox) // { // document.write(xx); // document.write(' = '); // document.write(eval('whichbox.'+xx)); // //UNCOMMENT THE FOLLOWING LINES IF YOU ALSO WANT TO DUMP THE CHILD OBJECTS: // //if (eval('whichbox.'+xx)=='[object]') // //{ document.write('**Begin child: '); // // for (zz in eval('whichbox.'+xx)) // // { document.write(zz); // // document.write(' = '); // // document.write(eval('whichbox.'+xx+zz)); // // document.write(', '); // // } // // document.write(':End child**'); // //} // document.write('<br>'); // } // END OF COMMENTED SECTION.
//If box was checked, accumulate the checkbox value as the form total, //Otherwise, reduce the form total by the checkbox value: if (whichbox.checked == false) { form_total -= eval(whichbox.value); } else { form_total += eval(whichbox.value); }
//Re-set displayed total on form: document.myform.total.value = '$'+eval(form_total);
}
//Define function to init the form on reload: function InitForm() { //Reset the displayed total on form: document.myform.total.value='$0';
//Set all checkboxes on form to unchecked: for (xx=0; xx < document.myform.elements.length; xx++) { if (document.myform.elements[xx].type == 'checkbox') { document.myform.elements[xx].checked = false; } } }
// end cloaking --> // End --> </script> <form method="POST" name="myform"> <font face=Arial> 商品一 $15.25 <input type="checkbox" name="Steak" value=15.25 onclick="CheckChoice(this);"> 商品二 $12.39 <input type="checkbox" name="Chicken" value=12.39 onclick="CheckChoice(this);"> 商品三 $18.75 <input type="checkbox" name="Sushi" value=18.75 onclick="CheckChoice(this);"> <br><br> <font> 花费总计: <input type="text" name="total" readonly onFocus="this.blur();"> </font> </font> </form>
抱歉!评论已关闭.