function changeLineColor(obj, clr) {
		obj.style.backgroundColor = clr;
}

var ie4 = (document.all) ? true : false;
var ns4 = (document.layers) ? true : false;
var ns6 = (document.getElementById && !document.all) ? true : false;

msx=0;
msy=0;

function getmousexy(Evnt){
 if (ns4){
 msx=Evnt.pageX;
 msy=Evnt.pageY;
 } 
 if (ns6){
 msx=Evnt.pageX;
 msy=Evnt.pageY;
 } 
 if(ie4) {
 msx=event.clientX + ((document.body.scrollLeft)?document.body.scrollLeft:0);
 msy=event.clientY + ((document.body.scrollTop)?document.body.scrollTop:0);
 }
}
if(ns4){
  document.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP|Event.MOUSEDOWN);
  document.onMouseMove=getmousexy;
//  document.onMouseDown=md;
//  document.onMouseUp=mu;
}
if(ns6){
  document.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP|Event.MOUSEDOWN);
  document.onmousemove = getmousexy;
//  document.onmousedown=md;
//  document.onmouseup=mu;
}
if(ie4){
  document.onmousemove=getmousexy;
//  document.onmousedown=md;
//  document.onmouseup=mu;
  }