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Phiên bản đầy đủ: jsB@nk » Ứng dụng » Ước lượng thời giản tải một tập tin
URL: https://www.javascriptbank.com/advance-downloading-speed-calculator.html
<style type="text/css"><!--.formCalc {width: 450px; padding: 1px 10px; margin: 20px auto; background: #EEDDCC;}.formCalcInput, .formCalcLabel {font-family: verdana, arial, sans-serif; font-size: 12px;}.formCalcInput {text-align: center;}.formCalcInput.left {text-align: left;}.formCalcInput.but {width: 200px;}h1.heading1 {text-align: left; font-size: 1.2em; margin-bottom: -12px;}.para {text-align: left; padding: 5px; font-size: 12px;}.mainDiv {width: 500px; margin: 0 auto; text-align: left; padding: 5px; font-family: verdana, arial, sans-serif;}table.tableCalc {width: 450px; margin: 0 auto; border-collapse: collapse; font-size: 12px;}table.thCalc {text-align: left; text-indent: 5px; padding: 10px 0;}table td.right {text-align: right;}table td.red {color: #990000; border-right: 5px solid #990000; padding-right: 5px;}table td.red1 {background: #CC8080;}table td.blue {color: blue; border-right: 5px solid #003399; padding-right: 5px;}table td.blue1 {background: #8099CC;}table td.green {color: green; border-right: 5px solid #336600; padding-right: 5px;}table td.green1 {background: #99B380;}table td.purple {color: purple; border-right: 5px solid #330066; padding-right: 5px;}table td.purple1 {background: #9980B3;}table td.tdCalc {padding: 5px 0; text-align: center;}--></style><script type="text/javascript"><!--// Created by: Gabrielle Gayheart :: //create an array of whatever size you send itfunction createarray(len) { this.length = len; for (var i = 0; i < len + 1; i++) { this[i] = 0; } return this;}// mult is either kb, mb, gb// form is the number arrayfunction calculate(form, mult) { // multiplier for the internet connection speeds //to add calculations, multiply connection speed times 1,000, divide by eight; then divide by 1024 // (kbs*1000/8)/1024) var arraysize = 8; //change this number if you add other speeds multiplier = new createarray(arraysize); multiplier[0] = "3.5156"; multiplier[1] = "6.8360"; multiplier[2] = "7.8125"; multiplier[3] = "31.25"; multiplier[4] = "62.5"; multiplier[5] = "73.2421"; multiplier[6] = "189.6973"; multiplier[7] = "549.3164"; //checks to see if 0 is not the value if (form.size.value != 0) { //does the math for (var j = 0; j < arraysize; j++) { var tottime = (mult * parseFloat(form.size.value)) / multiplier[j]; mod = tottime % 3600; form[j + "h"].value= Math.floor(tottime / 3600); form[j + "m"].value= Math.floor(mod / 60); form[j + "s"].value= Math.floor(tottime % 60); } } else { //default the result to 0 for (var k = 0; k < arraysize; k++) { form[k+"h"].value=0; form[k+"m"].value=0; form[k+"s"].value=0; } }}//--></script><form class="formCalc"><h1 class="heading1">Estimated File Download Times</h1><p class="para">Enter the file size of your document in the box below, then select KB, MB or GB.</p><div class="mainDiv"> <label class="formCalcLabel" for="size"> File Size:</label> <input class="formCalcInput right" name="size" id="size" size="4" value="#" type="text"> <input class="formCalcInput" onclick="calculate(this.form, 1)" value="KB" type="button"> <input class="formCalcInput" onclick="calculate(this.form, 1024)" value="MB" type="button"> <input class="formCalcInput" onclick="calculate(this.form, 1048576)" value="GB" type="button"> <input class="formCalcInput but" value="Reset for another calculation" type="reset"></div><table class="tableCalc"> <tbody> <tr> <th class="thCalc" colspan="1">Connection Type</th> <th class="thCalc" colspan="4">Estimated Time to Download</th> </tr> <tr> <td rowspan="2" class="right red tdCalc">Dial-Up Access</td> <td class="red1 tdCalc">28.8 Kb</td> <td class="red1 tdCalc"><input class="formCalcInput" name="0h" size="4" value="0" type="text"> hr.</td> <td class="red1 tdCalc"><input class="formCalcInput" name="0m" size="4" value="0" type="text"> min.</td> <td class="red1 tdCalc"><input class="formCalcInput" name="0s" size="4" value="0" type="text"> sec.</td> </tr> <tr> <td class="red1 tdCalc">56 Kb</td> <td class="red1 tdCalc"><input class="formCalcInput" name="1h" size="4" value="0" type="text"> hr.</td> <td class="red1 tdCalc"><input class="formCalcInput" name="1m" size="4" value="0" type="text"> min.</td> <td class="red1 tdCalc"><input class="formCalcInput" name="1s" size="4" value="0" type="text"> sec.</td> </tr> <tr> <td rowspan="3" class="right blue">DSL Access<br>Broadband Cable Access</td> <td class="blue1 tdCalc">128 Kb</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="2h" size="4" value="0" type="text"> hr.</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="2m" size="4" value="0" type="text"> min.</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="2s" size="4" value="0" type="text"> sec.</td> </tr> <tr> <td class="blue1 tdCalc">256 Kb</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="3h" size="4" value="0" type="text"> hr.</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="3m" size="4" value="0" type="text"> min.</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="3s" size="4" value="0" type="text"> sec.</td> </tr> <tr> <td class="blue1 tdCalc">512 Kb</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="4h" size="4" value="0" type="text"> hr.</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="4m" size="4" value="0" type="text"> min.</td> <td class="blue1 tdCalc"><input class="formCalcInput" name="4s" size="4" value="0" type="text"> sec.</td> </tr> <tr> <td class="right purple">Wireless/Satellite Access</td> <td class="purple1 tdCalc">600 Kb</td> <td class="purple1 tdCalc"><input class="formCalcInput" name="5h" size="4" value="0" type="text"> hr.</td> <td class="purple1 tdCalc"><input class="formCalcInput" name="5m" size="4" value="0" type="text"> min.</td> <td class="purple1 tdCalc"><input class="formCalcInput" name="5s" size="4" value="0" type="text"> sec.</td> </tr> <tr> <td class="right green tdCalc" rowspan="2">Govt./Business Access<br>High Speed Access</td> <td class="green1 tdCalc">T1</td> <td class="green1 tdCalc"><input class="formCalcInput" name="6h" size="4" value="0" type="text"> hr.</td> <td class="green1 tdCalc"><input class="formCalcInput" name="6m" size="4" value="0" type="text"> min.</td> <td class="green1 tdCalc"><input class="formCalcInput" name="6s" size="4" value="0" type="text"> sec.</td></tr> <tr> <td class="green1 tdCalc">T3</td> <td class="green1 tdCalc"><input class="formCalcInput" name="7h" size="4" value="0" type="text"> hr.</td> <td class="green1 tdCalc"><input class="formCalcInput" name="7m" size="4" value="0" type="text"> min.</td> <td class="green1 tdCalc"><input class="formCalcInput" name="7s" size="4" value="0" type="text"> sec.</td> </tr> </tbody></table><p class="para">Please note that the speed may vary due to server'scapacity and set-up, current Internet traffic, the viewer's hardware oroperating system, or the amount of people sharing the line (dial-up andcable) at the time of connection.</p></form>