function getLocation()
          {
              var t=document.getElementById("txt_Location");
              t.select();
              //IE            
              if(window.clipboardData)
              {
                window.clipboardData.clearData();
                window.clipboardData.setData("Text", t.value);
              }
              //Opera浏览器
              else if(navigator.userAgent.indexOf("Opera") != -1)
              {
                  window.location = txt;
              }
              //FireFox
              else if (window.netscape)
              {
                  try
                  {
                      netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
                  }
                  catch (e)
                  {
                      alert("您的firefox安全限制限制您进行剪贴板操作，请打开'about:config'将signed.applets.codebase_principal_support'设置为true'之后重试");
                      return false;
                  }
                  var clip = Components.classes["@mozilla.org/widget/clipboard;1"].createInstance(Components.interfaces.nsIClipboard);
                  if (!clip)
                      return;
                  var trans = Components.classes["@mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);
                  if (!trans)
                      return;
                  trans.addDataFlavor('text/unicode');
                  var str = new Object();
                  var len = new Object();
                  var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
                  var copytext = t.value;
                  str.data = copytext;
                  trans.setTransferData("text/unicode",str,copytext.length*2);
                  var clipid = Components.interfaces.nsIClipboard;
                  if (!clip)
                  return false;
                  clip.setData(trans,null,clipid.kGlobalClipboard);
              }
              alert("地址已复制到剪切板！");
          }