function validate_contactform()
{
	if(document.contact_us.name.value=="Name:" || document.contact_us.name.value=="")
	{
		alert("Please Enter Name");
		document.contact_us.name.focus();
		return false;
		
	
	}
	else if(document.contact_us.phone.value=="" || document.contact_us.phone.value=="Phone:")
	{
		alert("Please Enter Phone Number");
		document.contact_us.phone.focus();
		return false;
		
	}
	else if(document.contact_us.email.value=="" || document.contact_us.email.value=="Email:")
	{
		alert("Please Enter Email id");
		document.contact_us.email.focus();
		return false;
		
	}
	 else if(!valid_mail(document.contact_us.email.value))
	{
		alert("Please enter your valid email ID");
		document.contact_us.email.focus();
		return false;
	}
	
	
	else if(document.contact_us.comments.value=="Comments:" || document.contact_us.comments.value=="")
	{
		alert("Please Enter your message");
		document.contact_us.comments.focus();
		return false;
		
	}
	
}


function validate_contactusform()
{
	if(document.contactform.name.value=="" || document.contactform.name.value=="")
	{
		alert("Please Enter Name");
		document.contactform.name.focus();
		return false;
		
	
	}
	else if(document.contactform.address.value=="" || document.contactform.address.value=="")
	{
		alert("Please Enter Address");
		document.contactform.address.focus();
		return false;
		
	}
	else if(document.contactform.city.value=="" || document.contactform.city.value=="")
	{
		alert("Please Enter City");
		document.contactform.city.focus();
		return false;
		
	}
	else if(document.contactform.state.value=="" || document.contactform.state.value=="")
	{
		alert("Please Enter State");
		document.contactform.state.focus();
		return false;
		
	}
	else if(document.contactform.zip.value=="" || document.contactform.zip.value=="")
	{
		alert("Please Enter Zip");
		document.contactform.zip.focus();
		return false;
		
	}
	else if(document.contactform.phone.value=="" || document.contactform.phone.value=="")
	{
		alert("Please Enter Phone Number");
		document.contactform.phone.focus();
		return false;
		
	}
	else if(document.contactform.email.value=="" || document.contactform.email.value=="")
	{
		alert("Please Enter Email id");
		document.contactform.email.focus();
		return false;
		
	}
	 else if(!valid_mail(document.contactform.email.value))
	{
		alert("Please enter your valid email ID");
		document.contactform.email.focus();
		return false;
	}
	
	
	else if(document.contactform.howlong.value=="" || document.contactform.howlong.value=="")
	{
		alert("Please Enter How long has it been since your bariatric surgery?");
		document.contactform.howlong.focus();
		return false;
		
	}
	
}


function valid_mail(email)
{
	if(email.indexOf("@") == -1) 
	{
	  return false;
	}    
   	validarr = email.split("@");
   	if(validarr[0].length==0) 
   	{
   	  return false;
   	}
  	if(validarr[1].indexOf("@") >=0) 
  	{
   	  return false;
   	}
   	if(validarr[1].length==0) 
   	{
   	  return false;
   	}
   	if(validarr[1].length != 0) 
   	{ 
      if(validarr[1].indexOf(".") == -1) 
      {
   		return false;
 	  }
      validemail = validarr[1].split(".");
      if(validemail[0].length==0) 
      { 
       	return false;
      }
      if(validemail[1].length==0) 
      {
       	return false;
	  }
	  return true;
    }   // end of of validemail
}