function validate() {
	if (document.form1.txtName.value == ""){
		alert("Please enter your name")
		document.form1.txtName.focus();
		return false;
	}

	if (document.form1.txtPhone.value == ""){
		alert("Please enter a contact telephone number")
		document.form1.txtPhone.focus();
		return false;
	}

	if (document.form1.txtEmail.value == "") {
		alert("Please enter your email ID")
		document.form1.txtEmail.focus()
		return false
	}
	
 	var emailfmt= /^\w+([.-]\w+)*@\w+([.-]\w+)*\.\w{2,8}$/;
  	if(!emailfmt.test(document.form1.txtEmail.value))
  	{ 
		alert("Please enter a valid email ID")
		document.form1.txtEmail.focus()
		return false
	}

	return true;
}

document.write('<form name="form1" method="post" action="mailsent.php" onSubmit="return validate()">                <table width="100%"  border="0" cellspacing="0" cellpadding="0">                  <tr>                    <td width="10">&nbsp;</td>                    <td width="44">&nbsp;</td>                    <td width="3">&nbsp;</td>                    <td width="109" align="left">&nbsp;</td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td align="left" valign="middle"><div align="right"><span class="darkbrown">Name</span> </div></td>                    <td align="left" valign="middle">&nbsp;</td>                    <td align="left"><input name="txtName" type="text" class="darkbrown" id="txtName" size="12"></td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td align="left" valign="middle"><div align="right"><span class="darkbrown">Company</span></div></td>                    <td align="left" valign="middle">&nbsp;</td>                    <td align="left"><input name="txtCompany" type="text" class="darkbrown" id="txtCompany" size="12"></td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td align="left" valign="middle"><div align="right"><span class="darkbrown">Phone</span> </div></td>                    <td align="left" valign="middle">&nbsp;</td>                    <td align="left"><input name="txtPhone" type="text" class="darkbrown" id="txtPhone" size="12"></td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td align="left" valign="middle"><div align="right"><span class="darkbrown">Email</span> </div></td>                    <td align="left" valign="middle">&nbsp;</td>                    <td align="left"><input name="txtEmail" type="text" class="darkbrown" id="txtEmail" size="12"></td>                  </tr>                  <tr>                    <td width="10" height="38">&nbsp;</td>                    <td colspan="3" align="left" valign="middle"><select name="dwlLocation" class="darkbrown" id="dwlLocation">                        <option selected>Interested Location</option>                        <option>Old Madras Road</option>                        <option>Whitefield</option>                    </select></td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td colspan="3" align="left" valign="middle"><input name="chk1" type="checkbox" id="chk1" value="Virtual Office">                        <span class="darkbrown"> Virtual Office </span></td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td colspan="3" align="left" valign="middle"><input name="chk2" type="checkbox" id="chk2" value="Serviced Office">                        <span class="darkbrown"> Serviced Office</span></td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td colspan="3" align="left" valign="middle"><input name="chk3" type="checkbox" id="chk3" value="Conference / Meeting">                        <span class="darkbrown"> Conference / Meeting </span></td>                  </tr>                  <tr>                    <td>&nbsp;</td>                    <td colspan="3" align="left" valign="middle"><input name="chk4" type="checkbox" id="chk4" value="Business Hotel">                        <span class="darkbrown">Business Hotel </span></td>                  </tr>                  <tr>                    <td>&nbsp;</td>                    <td colspan="3" align="left" valign="middle"><input name="chk5" type="checkbox" id="chk5" value="Incubation Services">                        <span class="darkbrown">Incubation Services </span></td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td colspan="3" align="left" valign="middle"><input name="chk6" type="checkbox" id="chk6" value="Video Conferencing">                        <span class="darkbrown">Video Conferencing</span></td>                  </tr>                  <tr>                    <td width="10" height="38">&nbsp;</td>                   <td colspan="3" align="left" valign="middle"><table width="100%"  border="0" cellspacing="0" cellpadding="0">                        <tr>                          <td width="85"><span class="darkbrown">Number of People </span></td>                          <td width="3">&nbsp;</td>                          <td width="60"><input name="txtNo" type="text" class="darkbrown" id="txtNo" size="3"></td>                        </tr>                    </table></td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td colspan="2" align="left" valign="middle"><input name="Submit" type="submit" class="darkbrown" value="Submit"></td>                    <td>&nbsp;</td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td colspan="2" align="left" valign="middle">&nbsp;</td>                    <td>&nbsp;</td>                  </tr>                  <tr>                    <td width="10">&nbsp;</td>                    <td colspan="2" align="left" valign="middle">&nbsp;</td>                    <td>&nbsp;</td>                  </tr>                </table>             </form>');
