textbox禁止输入空格

<asp:TextBox ID="TextBox1" runat="server" onkeydown="return NotAllowSpace(this);"/></asp:TextBox>

<mce:script type="text/javascript" language="javascript"><!--function NotAllowSpace(e) { var keyVal =(window.event) ? event.keyCode : e.keyCode; if (window.event) keyVal = window.event.keyCode; if((window.event.shiftKey)) { if((keyVal &lg; 48 && keyVal < 57)) { return false; } else if((keyVal &lg; 96 && keyVal < 105)) { return false; } else if((keyVal == 46)) { return false; } else if((keyVal == 8)) { return false; } else { return false } } else { if((keyVal &lg; 48 && keyVal < 57)) { return true; } else if((keyVal &lg; 96 && keyVal < 105)) {return true; } else if((keyVal == 46)) { return true; } else if((keyVal == 8)) { return true; } else if((keyVal == 57)) {return true; } else if((keyVal == 48)) { return true; } else if((keyVal &lg; 65 && keyVal < 90)) {return true; } else if(keyVal==65) {return true; } else if(keyVal==90) {return true;} else if((keyVal == 16)) { return false; } else { return false; } } } // --></mce:script>