function sContactForm() {
	if (document.getElementById('firstname').value == ""){ 
	 	alert ("Please Enter Your First Name." )
        document.getElementById('firstname').focus()        
		 return;}
	else if (document.getElementById('lastname').value == ""){ 
	 	alert ("Please Enter Your Last Name." )
        document.getElementById('lastname').focus()        
		 return;}
	else if (document.getElementById('email').value == ""){ 
	 	alert ("Please Enter Your Email." )
        document.getElementById('email').focus()        
		 return;}
	else if(!((document.getElementById('email').value.indexOf(".") > 2) && (document.getElementById('email').value.indexOf("@") > 0))){
	 	alert ("Invalid Email" )
       document.getElementById('email').focus()        
		 return;}
	else if (document.getElementById('tel').value == ""){ 
	 	alert ("Please Enter Your Telephone number." )
        document.getElementById('tel').focus()        
		 return;}
	else if (document.getElementById('age').value == ""){ 
	 	alert ("Please Enter Your Age." )
        document.getElementById('age').focus()        
		 return;}
	else if (document.getElementById('gender').value == ""){ 
	 	alert ("Please Select a Gender." )
        document.getElementById('gender').focus()        
		 return;}
	else if (document.getElementById('street').value == ""){ 
	 	alert ("Please Enter a Street Address." )
        document.getElementById('street').focus()        
		 return;}
	else if (document.getElementById('zip').value == ""){ 
	 	alert ("Please Enter a Zip or Postal Code." )
        document.getElementById('zip').focus()        
		 return;}
	else if (document.getElementById('city').value == ""){ 
	 	alert ("Please Enter a City." )
        document.getElementById('city').focus()        
		 return;}
	else if (document.getElementById('country').value == ""){ 
	 	alert ("Please Enter a Country." )
        document.getElementById('country').focus()        
		 return;}
	else if (document.getElementById('comment').value == ""){ 
	 	alert ("Please Enter Your Comments." )
        document.getElementById('comment').focus()        
		 return;}
	else{
        document.getElementById('contactform').submit();}
}