Javascript实现滑块滑动改变值的实现代码_javascript技巧

window.onload = function ()
{
var oWin = document.getElementById("win");
var bDrag = false;
var disX = disY = 0;
oWin.onmousedown = function (event)
{
var event = event || window.event;
bDrag = true;
disX = event.clientX - oWin.offsetLeft;
this.setCapture && this.setCapture();
return false
};
oWin.onmousemove = function (event)
{
if (!bDrag) return;
var event = event || window.event;
var iL = event.clientX - disX;
var maxL = 480;
iL = iL < 0 ? 0 : iL;
iL = iL > maxL ? maxL : iL;
oWin.style.marginTop = oWin.style.marginLeft = 0;
oWin.style.left = iL + "px"; //滑块距离左边的位置
document.getElementById("hkline").style.width = iL; //滑块左边绿色条目的宽度
return false
};
document.onmouseup = window.onblur = oWin.onlosecapture = function ()
{
bDrag = false;
oWin.releaseCapture && oWin.releaseCapture();
};
};