兼容ie，firefox window.showModalDialog

 

計算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'; 
          
} 
         

 

調用Dialog位置方法。 

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