兼容ie，firefox window.showModalDialog

 

计算Dialog居中位置。

 
  function CalcShowModalDialogLocation(dialogWidth, dialogHeight) { 
  
     
  var iWidth = dialogWidth; 
  
     
  var iHeight = dialogHeight; 
  
     
  var iTop = (window.screen.availHeight - 20 - iHeight) / 2; 
  
     
  var iLeft = (window.screen.availWidth - 10 - iWidth) / 2; 
  
     
  return 'dialogWidth:' + iWidth + 'px;dialogHeight:' + iHeight + 'px;dialogTop: ' + iTop + 'px; dialogLeft: ' + iLeft + 'px;center:yes;scroll:no;status:no;resizable:0;location:no'; 
  
} 
 

 

调用Dialog位置方法。 

     
  var DialogLocation = CalcShowModalDialogLocation(500, 260); 
  
                 
  var result = window.showModalDialog("URL", window, DialogLocation);