js 如何調用Windows內建的配色控制項

<OBJECT id=dlgHelper CLASSID="clsid:3050f819-98b5-11cf-bb82-00aa00bdce0b" width="0px" height="0px"></OBJECT>
 
<script>
var tempColor = "0099cc";
function returnColor(){
 var Hcolor = dlgHelper.ChooseColorDlg(tempColor).toString(16);
 with(event.srcElement){
 value = ((Hcolor.length<6)?"000000".substring(0,6-Hcolor.length):"") + Hcolor;
 style.backgroundColor = ((Hcolor.length<6)?"000000".substring(0,6-Hcolor.length):"") + Hcolor;
 }
 tempColor = Hcolor
}
</script>
<input type="text" value="#0099CC" size="12" onclick="returnColor()" style="background-color: #0099CC">