JavaScript form Inline Valiation

function Validateform()
{
    name=Trim(document.getElementById("Name").value) ;
    email=Trim(document.getElementById("Email").value) ;
    contact=Trim(document.getElementById("ContactNo").value) ;
    company=Trim(document.getElementById("Company").value) ;
    querytype=Trim(document.getElementById("QueryType").value) ;
    var str="";
    flag=true;
    //str=str+ "please enter your e-mail";
            if(name=='Please enter your Name' || name=='Please enter Alphabets only' || name=='')
            {
                str="Please enter your Name\n";
                document.getElementById("Name").focus();
                flag=false;
                //return false;
            }
            if(email=='Please enter your E-mail' || email=='Enter valid E-mail eg name@yahoo.com' || email=='')
            {
                str+="Please enter your E-mail Address\n";
                document.getElementById("Email").focus();
                flag=false;
                //return false;
            }
            if(contact=='Please enter your Contact Number' || contact=='Enter valid Contact Number' || contact=='')
            {
                str+="Please enter your Contact Number\n";
                document.getElementById("ContactNo").focus();
                flag=false;
                //return false;
            }
          
            if(company=='Please enter your Company Name' || company=='Enter valid Company Name' || company=='')
            {
                str+="Please enter your Company Name\n";
                document.getElementById("Company").focus();
                flag=false;
                //return false;
            }
              
              
            if(querytype=='Query Type' || querytype=='' || querytype=='Query Type')
            {
                str+="Please select QueryType\n";
                document.getElementById("QueryType").focus();
                flag=false;
                //return false;
            }
              
          
          
            if(flag==false)
            {
                alert(str);
                return false;
            }
            else
                return true;
}
      
        function name_check()
        {
            name=Trim(document.getElementById("Name").value) ;
          
          
            if(name=='Please enter your Name' || name=='Please enter Alphabets only')
            {
                document.getElementById("Name").value ='';
            return false;
          
            }
            return true;
        }
      
        function email_check()
        {
          
            email=Trim(document.getElementById("Email").value) ;
          
            if(email=='Please enter your E-mail' || email=='Enter valid E-mail eg name@yahoo.com')
            {
            document.getElementById("Email").value ='';
            return false;
          
            }
            return true;
        }
      
      
        function contact_check()
        {
          
            contact=Trim(document.getElementById("ContactNo").value) ;
            if(contact=='Please enter your Contact Number' || contact=='Enter valid Contact Number')
            {
            document.getElementById("ContactNo").value ='';
            return false;
          
        }
            return true;
        }
          
          
            function Company_check()
        {
          
            contact=Trim(document.getElementById("Company").value) ;
            if(contact=='Please enter your Company Name' || contact=='Please Enter valid Company Name')
            {
            document.getElementById("Company").value ='';
            return false;
          
        }
            return true;
        }
      
      
      
      
          
          
          
        //for errors
      
        function name_error()
        {
        obj=document.getElementById("formId");
            name_obj=Trim(obj.Name.value);
            //alert(name_obj);
            if(name_obj=='Name' || name_obj=='')
            {
                document.getElementById("Name").value="Please enter your Name" ;
                return false;
            }
            else
            {
              
                var regexLetter = /^[a-zA-Z-/\s]+$/;
                if(!regexLetter.test(name_obj))
                {
                document.getElementById("Name").value="Please enter Alphabets only";
                return false;
                }
            }
            return true;
            }
          
          
          
    function email_error()
        {
        obj=document.getElementById("formId");
            email_obj=Trim(obj.Email.value);
            //alert(name_obj);
            if(email_obj=='E-mail' || email_obj=='')
            {
                document.getElementById("Email").value="Please enter your E-mail" ;
                return false;
            }
            else
            {
          
                var regexLetter =  /^[a-zA-Z]+[a-zA-Z0-9._-]*\@[a-zA-Z0-9-]+\.[a-zA-Z.]{2,5}$/;
                if(!regexLetter.test(email_obj))
                {
                document.getElementById("Email").value="Enter valid E-mail eg name@yahoo.com";
                return false;
                }
            }
            return true;
            }
          
          
            function contact_error()
        {
        obj=document.getElementById("formId");
            contact_obj=Trim(obj.ContactNo.value);
            //alert(name_obj);
            if(contact_obj=='Contact' || contact_obj=='')
            {
                document.getElementById("ContactNo").value="Please enter your Contact Number" ;
                return false;
            }
            else
            {
          
                var regexLetter =/^\d{10}\d*$/;

    
                if(!regexLetter.test(contact_obj))
                {
                document.getElementById("ContactNo").value="Enter valid Contact Number";
                return false;
                }
            }
            return true;
            }
          
          
            function Company_error()
        {
        obj=document.getElementById("formId");
            company_obj=Trim(obj.Company.value);
            //alert(name_obj);
            if(company_obj=='Company' || company_obj=='')
            {
                document.getElementById("Company").value="Please enter your Company Name" ;
                return false;
            }
            else
            {
              
                var regexLetter = /^[0-9a-zA-Z-/\s]+$/;
                if(!regexLetter.test(company_obj))
                {
                document.getElementById("Company").value="Please Enter valid Company Name";
                return false;
                }
            }
            return true;
            }
          
          
      
</script>

<form action="<?php $_SERVER['PHP_SELF']; ?>" method="post" id="formId" enctype="multipart/form-data" onsubmit="return Validateform();">
                                     <div class="login_lft">
                                            <div class="login_txt">Name<span class="red">*</span></div>
                                            <div class="login_field">
                                            <label>
                                            <input name="Name" type="text"  class="field" id="Name" maxlength="30" value='Please enter your Name' onblur="return name_error();" onclick="return name_check();" onfocus="return name_check();" tabindex="1" maxlength="50"/>
                                            </label>
                                            </div>
                                           
                                            <div class="login_txt">E-mail Id<span class="red">*</span></div>
                                            <div class="login_field">
                                            <label>
                                            <input name="Email" type="text" class="field" id="Email"  value="Please enter your E-mail" onblur="return email_error();" onclick="return email_check();" onfocus="return email_check();" tabindex="3" maxlength="100"/>
                                            </label>
                                          </div>
                                           
                                        
                                           
                                            <div class="login_field">
                                            <label></label>
                                    </div>
                                      <div class="login_txt">Query Type<span class="red">*</span></div>
                                      <div class="login_field">
                                            <label>
                                            <select name="QueryType" class="field" id="QueryType" tabindex="5" >
                                             <option value="Query Type" selected="selected">Query Type</option>
                                            <option value="Application Development & Design">Application Development & Design</option>
                                            <option value="AMC">AMC</option>
                                            <option value="Application Migration">Application Migration</option>
                                            <option value="Data Centre">Data Centre</option>
                                            <option value="FLMS Demo">FLMS Demo</option>
                                            <option value="Mobile Application">Mobile Application</option>
                                            <option value="Network">Network</option>
                                          
                                            <option value="Remote infrastrucher Management">Remote infrastrucher Management</option>
                                            <option value="Testing">Testing</option>
                                            <option value="TIMS Demo">TIMS Demo</option>
                                            <option value="Other Query">Other Query</option>
                                            </select>
                                            </label>
                                      </div>
                                          
                                           
                                  </div>
                                   
                                    <div class="login_rgt">
                                            <!--<div class="login_txt">Subject<span class="red">*</span></div>
                                            <div class="login_field">
                                            <label>
                                            <input name="Subject" type="text" class="field" id="Subject" value="please enter Subject" onblur="return Subject_error();" onclick="return Subject_check();" onfocus="return Subject_check();" maxlength="50"/>
                                            </label>
                                            </div>-->
                                           
                                               <div class="login_txt">Company Name<span class="red">*</span></div>
                                            <div class="login_field">
                                            <label>
                                            <input name="Company" type="text" class="field" id="Company" value="Please enter your Company Name" onblur="return Company_error();" onclick="return Company_check();" onfocus="return Company_check();" tabindex="2" maxlength="200"/>
                                            </label>
                                            </div>
                                           
                                            <div class="login_txt">Contact Number<span class="red">*</span></div>
                                            <div class="login_field">
                                            <label>
                                            <input name="ContactNo" type="text" class="field" id="ContactNo" maxlength="11" value="Please enter your Contact Number" onblur="return contact_error();" onclick="return contact_check();" onfocus="return contact_check();" tabindex="4" />
                                            </label>
                                          </div>
                                          
                                           <!-- <div class="login_txt">Website URL</div>
                                      <div class="login_field">
                                            <label>
                                            <input name="WebsiteURL" type="text" class="field" id="WebsiteURL" />
                                            </label>
                                      </div>-->
                                           
                                     <div class="login_txt">Attach File</div>
                                            <div class="login_field">
                                            <label>
                                            <input type="file" name="ContactFile" id="ContactFile" tabindex="6" />
                                            </label>
                                            </div>
                                      <div class="login_field"></div>
                                          
                                           
                                  </div>
                                <div class="clear"></div>
                                <div class="div_adjust">
                             
                                </div>
                               
                                <div class="div_adjust">
                                <div class="login_txt">Message<br /></div>
                                  <label>
                                  <textarea name="Description" class="field3" id="Description" cols="45" rows="5" tabindex="7" maxlength="100"></textarea>
                                  </label>
                               
                                <div class="clear"></div>
                                </div><br />
                               

                                <div>
                               
                                <table width="60%" border="0">
  <tr>
    <td><input name="button" type="submit" id="button" value="Submit"  class="input_button"  tabindex="8" /></td>
    <td>Fields marked with <span class="red2"> * </span> are mandatory.</td>
  </tr>
</table>

                                </div>
                              
                                </form>
                                </div>
         
          </div>
            <?php } ?>