plzzzz help Dropdown JavaScript onClick event not firing in Chrome/IE

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C#

Dropdown list JavaScript onClick event not firing in Chrome/IE but javascript onclick event fire working in table into (tr/td) following (tr/td) in comment and another one more problem working another Pc Not working my PC

My code following:-

ret.Append("<Select>");
              foreach (MMapData mapData in module.MapDatas)
              {

                  ret.Append("<option onclick=\"document.getElementById('LParentModuleID').value='" + module.ModuleID + "';document.getElementById('LDParentModuleID').value='0';document.getElementById('" + module.TableName + "').value='" + mapData.ID + "';document.getElementById('ParentMapping').value='" + mapData.ID + "' ;MultiNavigationLoadMyChild(" + ParentWorkFlow + ", " + module.ModuleID + ", 0, 'm', " + ChildWorkFlow + ", 1, 'A', this);CreateNavigation(" + module.ModuleID + "," + mapData.ID + ");" + this.LoadNextPanelsMethod() + ";\"><a href=\"#\" id=\"lnkA" + module.Title.Trim().ToUpper()[0].ToString() + mapData.ID + "\" ><font color=\"#22BB22\">" + mapData.Title + "</font></a></option>");
                
           // ret.Append("<tr><td><a href=\"#\" id=\"lnkA" + module.Title.Trim().ToUpper()[0].ToString() + mapData.ID + "\" onclick=\"document.getElementById('LParentModuleID').value='" + module.ModuleID + "';document.getElementById('LDParentModuleID').value='0';document.getElementById('" + module.TableName + "').value='" + mapData.ID + "';document.getElementById('ParentMapping').value='" + mapData.ID + "' ;MultiNavigationLoadMyChild(" + ParentWorkFlow + ", " + module.ModuleID + ", 0, 'm', " + ChildWorkFlow + ", 1, 'A', this);CreateNavigation(" + module.ModuleID + "," + mapData.ID + ");" + this.LoadNextPanelsMethod() + ";\"><font color=\"#22BB22\">" + mapData.Title + "</font></a></td></tr>");

              }
              ret.Append("</Select>");