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我有6個滑塊，每個滑塊的相應值都是0-100。我希望能夠在每個滑塊的右側顯示每個滑塊百分比（相對於總滑塊總數），但我不確定如何做到這一點。顯示HTML5滑塊值旁邊的百分比
我能搶滑塊值上面顯示，以及滑塊值和值，如JavaScript變量的總和，但我不能......
1）更新的百分比（我想我可能需要編寫一個單獨的函數來完成此操作，然後在顯示滑塊值後立即調用它）或
2）顯示百分比值一個有效的整數）在滑塊值的後面。
任何人都可以告訴我如何做到這一點？從技術角度來看，這不應該很困難，但我在這方面經驗不足。我也沒有使用jquery（正如你所知道的）......謝謝！
代碼： http://jsbin.com/owIjEXA/7/edit
<!-- Put divs here... trying to set up the display of percentages -->
<div id="val_weight1"></div>
<div id="val_weight2"></div>
<div id="val_weight3"></div>
<div id="val_weight4"></div>
<div id="val_weight5"></div>
<div id="val_weight6"></div>
<!-- form start -->
<form name = "form_weight1" id = "form_weight1" >
<text><b> First Weight </b></text>
<input id="weight1" input type="range" name="weight1" min="0" max="100" value="40" step="1" onchange="showValue(this); " />
<span id="range">40</span>
<text>/ PERCENTAGE%</text>
<script type="text/javascript">
<!-- Original JS bin that modified code: http://jsbin.com/ISekuSiN/5/edit -->
function get_nextsibling(n) {
x=n.nextSibling;
while (x.nodeType!=1) {
x=x.nextSibling; }
return x; }
function showValue(self) {
get_nextsibling(self).innerHTML=self.value; }
</script>
</form>
<form name = "form_weight2" id = "form_weight2" >
<text><b> Second Weight </b></text>
<input id="weight2" input type="range" name="weight2" min="0" max="100" value="10" step="1" onchange="showValue(this); " />
<span id="range">10</span>
<text>/ PERCENTAGE%</text>
</form>
<form name = "form_weight3" id = "form_weight3" >
<text><b> Third Weight</b></text>
<input id="weight3" input type="range" name="weight3" min="0" max="100" value="20" step="1" onchange="showValue(this); " />
<span id="range">20</span>
<text>/ PERCENTAGE%</text>
</form>
<form name = "form_weight4" id = "form_weight4" >
<text><b> Fourth Weight </b></text>
<input id="weight4" input type="range" name="weight4" min="0" max="100" value="5" step="1" onchange="showValue(this); " />
<span id="range">5</span>
<text>/ PERCENTAGE%</text>
</form>
<form name = "form_weight5" id = "form_weight5" >
<text><b> Fifth Weight </b></text>
<input id="weight5" input type="range" name="weight5" min="0" max="100" value="5" step="1" onchange="showValue(this); " />
<span id="range">5</span>
<text>/ PERCENTAGE%</text>
</form>
<form name = "form_weight6" id = "form_weight6" >
<text><b> Sixth Weight </b></text>
<input id="weight6" input type="range" name="weight6" min="0" max="100" value="20" step="1" onchange="showValue(this); " />
<span id="range">20</span>
<text>/ PERCENTAGE%</text>
</form>
<script type="text/javascript">
var weightfactor1 = parseInt(document.getElementById("weight1").value) ;
var weightfactor2 = parseInt(document.getElementById("weight2").value) ;
var weightfactor3 = parseInt(document.getElementById("weight3").value) ;
var weightfactor4 = parseInt(document.getElementById("weight4").value) ;
var weightfactor5 = parseInt(document.getElementById("weight5").value) ;
var weightfactor6 = parseInt(document.getElementById("weight6").value) ;
var weight_factor_sum = weightfactor1 + weightfactor2 + weightfactor3 + weightfactor4 + weightfactor5 + weightfactor6 ;
document.getElementById('val_weight1').innerHTML = (weightfactor1/weight_factor_sum)*100;
document.getElementById('val_weight2').innerHTML = (weightfactor2/weight_factor_sum)*100;
document.getElementById('val_weight3').innerHTML = (weightfactor3/weight_factor_sum)*100;
document.getElementById('val_weight4').innerHTML = (weightfactor4/weight_factor_sum)*100;
document.getElementById('val_weight5').innerHTML = (weightfactor5/weight_factor_sum)*100;
document.getElementById('val_weight6').innerHTML = (weightfactor6/weight_factor_sum)*100;
</script>