mousemove.js

来自「这是《JavaScript学习源代码》一书的源代码」· JavaScript 代码 · 共 25 行

window.onerror=wassup;
function wassup(a,b,c){alert(a,b,c);}

// specify a MOUSEMOVE event-handler
window.document.onmousemove=showcoords;

// a function to react to the MOUSEMOVE event
function showcoords(e)
{ 
  var xpos, ypos;

  if(navigator.appName == "Microsoft Internet Explorer")
  {
    xpos = event.x; ypos = event.y;
  }
  else
  {
    xpos = e.pageX; ypos = e.pageY;
  }
     
  document.getElementById("txt").value = "X: " +xpos+ "  Y: " +ypos ;  
            
}