色彩调节器

提示:这是一个颜色的调节器，现在本例子只简单的改变了背景的颜色，你完全可以将这使用方法应用到如聊天室的字体颜色等程序上，可以让你的应用增添色彩.

Prozent 255

1.将下面的代码复制到 <body>内

<style>.drag {
CURSOR: hand; POSITION: relative
}
</style>
<script language=JavaScript1.2>
// Slider script by Ronald H. Jankowsky (http://rj-edv-beratung.de), parts of 
code (draglayer, movelayer) by DynamicDrive.com
// This script is free for use, please leave this notice intact
var sPosition;
var showPerc=100;
document.onmousedown=dragLayer
document.onmouseup=new Function("dragMe=false")
var Color= new Array();
  Color[0] = "00";
  Color[1] = "11";
  Color[2] = "22";
  Color[3] = "33";
  Color[4] = "44";
  Color[5] = "55";
  Color[6] = "66";
  Color[7] = "77";
  Color[8] = "88";
  Color[9] = "99";
  Color[10] = "AA";
  Color[11] = "BB";
  Color[12] = "CC";
  Color[13] = "DD";
  Color[14] = "EE";
  Color[15] = "FF";
// Demofunction to change bg-color by moving slider
  var rVal,gVal,bVal, cCol
  function chgBg() {
  cCol = document.bgColor; rVal=cCol.substr(1,2); gVal=cCol.substr(3,2); bVal=cCol.substr(5,2);
  ind = Math.round(showPerc/16); if (ind < 0) ind = 0; if (ind > 15) ind=15;
  // If more sliders are used, each of them has to be handled separately
  if (kObj.id =="knobImg") document.bgColor="#"+Color[ind]+gVal+bVal;
  if (kObj.id =="knobImg1") document.bgColor="#"+rVal+Color[ind]+bVal;
  if (kObj.id =="knobImg2") document.bgColor="#"+rVal+gVal+Color[ind];
  }
// Drag and move engine (original code by DynamicDrive.com), don't change unless 
  explicitely indicated
  var dragMe=false, kObj, yPos,direction
  function moveLayer() {
  if (event.button==1 && dragMe) {
  oldY = kObj.style.pixelTop; kObj.style.pixelTop=temp2+event.clientY-yPos; 
  // Limit movement of knob to stay inside layer
  if (kObj.style.pixelTop > oldY) direction="dn"; else direction="up";
  if (kObj.style.pixelTop < 2 && direction=="up") {kObj.style.pixelTop=2; 
  direction="dn";}
  if (kObj.style.pixelTop > 102 && direction=="dn") {kObj.style.pixelTop=102; 
  direction="up";}
  // Set working variable 'showPerc' depending on 100 or 250 scaling
  sPosition=kObj.style.pixelTop; showPerc = (perCent[0].checked) ? sPosition-2 
  : (sPosition-2)/2*5; 
  // The following line should be replaced by the function-call with the actual 
  task to perform
  chgBg(); 
  return false; }
  }
  function dragLayer() {
  if (!document.all) return;
  if (event.srcElement.className=="drag") {dragMe=true; kObj=event.srcElement; 
  temp2=kObj.style.pixelTop; yPos=event.clientY; document.onmousemove=moveLayer; 
  }
  }
  </script>
  提示:这是一个颜色的调节器，现在本例子只简单的改变了背景的颜色，你完全可以将这使用方法应用到如聊天室的字体颜色等程序上，可以让你的应用增添色彩.</p>
  <div id=outerLyr 
  style="Z-INDEX: 1; LEFT: 233px; WIDTH: 23px; POSITION: absolute; TOP: 111px; 
  HEIGHT: 120px; BACKGROUND-COLOR: #000000"><img 
  class=drag id=knobImg 
  style="Z-INDEX: 3; LEFT: 2px; WIDTH: 20px; TOP: 100px; HEIGHT: 17px" 
  
  src="../tempimgs/js/knob.jpeg"> 
  <div id=innerLyr 
  style="Z-INDEX: 2; LEFT: 2px; WIDTH: 20px; POSITION: absolute; TOP: 2px; 
  HEIGHT: 117px; BACKGROUND-COLOR: #777777"> 
  <div id=barLyr 
  style="Z-INDEX: 1; LEFT: 9px; WIDTH: 2px; POSITION: absolute; TOP: 5px; 
  HEIGHT: 110px; BACKGROUND-COLOR: #000000"></div>
  </div>
  </div>
  <div id=outerLyr1 
  style="Z-INDEX: 1; LEFT: 268px; WIDTH: 23px; POSITION: absolute; TOP: 111px; 
  HEIGHT: 120px; BACKGROUND-COLOR: #000000"><img 
  class=drag id=knobImg1 
  style="Z-INDEX: 3; LEFT: 2px; WIDTH: 20px; TOP: 100px; HEIGHT: 17px" 
  
  src="../tempimgs/js/knob.jpeg"> 
  <div id=innerLyr1 
  style="Z-INDEX: 2; LEFT: 2px; WIDTH: 20px; POSITION: absolute; TOP: 2px; 
  HEIGHT: 117px; BACKGROUND-COLOR: #777777"> 
  <div id=barLyr1 
  style="Z-INDEX: 1; LEFT: 9px; WIDTH: 2px; POSITION: absolute; TOP: 5px; 
  HEIGHT: 110px; BACKGROUND-COLOR: #000000"></div>
  </div>
  </div>
  <div id=outerLyr2 
  style="Z-INDEX: 1; LEFT: 300px; WIDTH: 23px; POSITION: absolute; TOP: 111px; 
  HEIGHT: 120px; BACKGROUND-COLOR: #000000"><img 
  class=drag id=knobImg2 
  style="Z-INDEX: 3; LEFT: 2px; WIDTH: 20px; TOP: 100px; HEIGHT: 17px" 
  
  src="../tempimgs/js/knob.jpeg"> 
  <div id=innerLyr2 
  style="Z-INDEX: 2; LEFT: 2px; WIDTH: 20px; POSITION: absolute; TOP: 2px; 
  HEIGHT: 117px; BACKGROUND-COLOR: #777777"> 
  <div id=barLyr2 
  style="Z-INDEX: 1; LEFT: 9px; WIDTH: 2px; POSITION: absolute; TOP: 5px; 
  HEIGHT: 110px; BACKGROUND-COLOR: #000000"></div>
  </div>
  
  </div>
  <p>
  <input 
  type=radio value=false name=perCent>
  Prozent 
  <input type=radio CHECKED value=true 
  name=perCent>
  255