function CheckForm(){
	
			 if (document.contactForm.name.value=="")
			 {
			 alert("Please insert your name");
			 document.contactForm.name.focus();
			 return false;
			 }
			 
			 if (document.contactForm.email.value=="")
			 {
			 alert("Please insert your e-mail address");
			 document.contactForm.email.focus();
			 return false;
			 }
			 
			 if (document.contactForm.phone.value=="")
			 {
			 alert("Please insert your telephone number");
			 document.contactForm.phone.focus();
			 return false;
			 }
			 
			 if (document.contactForm.comment.value=="")
			 {
			 alert("Please insert your message");
			 document.contactForm.comment.focus();
			 return false;
			 }
			 
			 
			 return true;
			 }