function validatedata2()
{
	
  //alert("Validating Input..." )
  if (document.getElementById('01First_Name').value == "")
	{alert("Please enter your first name." )
	 document.getElementById('01First_Name').focus()
	}
  else
	{CheckLastName()}
	
function CheckLastName()
{
  if (document.getElementById('02Last_Name').value == "")
	{alert("Please enter your last name." )
	 document.getElementById('02Last_Name').focus()
	}
  else
	{CheckEmailAddress()}
}

function CheckEmailAddress()
{
 regex = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/
 email = document.getElementById('09Email').value
 
    if  (regex.test(email))
    {  
		//alert("Sending" )
		document.getElementById('contactus').submit()
		}		
    else
    {  alert("Please enter a valid email address" )      
	     document.getElementById('09Email').focus()	
	  }
} 

}


<!--  Start Validate for Email From. -->
<!--  Start Validate for Email From. -->

function validatedata3()
{
	
  //alert("Validating Input..." )
  if (document.getElementById('11Email_Subject').value == "")
	{alert("Please enter a Subject Line." )
	 document.getElementById('11Email_Subject').focus()
	}
  else
	{CommentsCheck()}
	
function CommentsCheck()
{
  if (document.getElementById('12Email_Content').value == "")
	{alert("Please enter a Message." )
	 document.getElementById('12Email_Content').focus()
	}
  else
	{CheckEmailAddress()}
}

function CheckEmailAddress()
{
 regex = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/
 email = document.getElementById('09Email').value
 
    if  (regex.test(email))
    {  
		//alert("Sending" )
		document.getElementById('contactus').submit()
		}		
    else
    {  alert("Please enter a valid email address" )      
	     document.getElementById('09Email').focus()	
	  }
} 

}