function checkFormfriend() 
 {
	yourname = document.getElementById("yourname").value;
	youremail = document.getElementById("youremail").value;
	friendname = document.getElementById("friendname").value;
	friendemail = document.getElementById("friendemail").value;
	
	if (yourname == "") { hideAllErrors(); document.getElementById("yournameError").style.display = "inline"; document.getElementById("yourname").select(); document.getElementById("yourname").focus(); return false; } 
	if (yourname == " ") { hideAllErrors(); document.getElementById("yournameError").style.display = "inline"; document.getElementById("yourname").select(); document.getElementById("yourname").focus(); return false; } 
	if (yourname == "  ") { hideAllErrors(); document.getElementById("yournameError").style.display = "inline"; document.getElementById("yourname").select(); document.getElementById("yourname").focus(); return false; } 
	if (yourname == "   ") { hideAllErrors(); document.getElementById("yournameError").style.display = "inline"; document.getElementById("yourname").select(); document.getElementById("yourname").focus(); return false; } 
	if (yourname == "    ") { hideAllErrors(); document.getElementById("yournameError").style.display = "inline"; document.getElementById("yourname").select(); document.getElementById("yourname").focus(); return false; } 
	if (yourname == "     ") { hideAllErrors(); document.getElementById("yournameError").style.display = "inline"; document.getElementById("yourname").select(); document.getElementById("yourname").focus(); return false; } 

	if (youremail == "") { hideAllErrors(); document.getElementById("youremailError").style.display = "inline"; document.getElementById("youremail").select(); document.getElementById("youremail").focus(); return false; }    	
	if (youremail != "") { hideAllErrors(); var emailpattern = /^.+@.+\..{2,3}$/; if(!emailpattern.test(youremail)) { document.getElementById("youremailError").style.display = "inline"; document.getElementById("youremail").select(); document.getElementById("youremail").focus(); return false; } }    

	if (friendname == "") { hideAllErrors(); document.getElementById("friendnameError").style.display = "inline"; document.getElementById("friendname").select(); document.getElementById("friendname").focus(); return false; } 
	if (friendname == " ") { hideAllErrors(); document.getElementById("friendnameError").style.display = "inline"; document.getElementById("friendname").select(); document.getElementById("friendname").focus(); return false; } 
	if (friendname == "  ") { hideAllErrors(); document.getElementById("friendnameError").style.display = "inline"; document.getElementById("friendname").select(); document.getElementById("friendname").focus(); return false; } 
	if (friendname == "   ") { hideAllErrors(); document.getElementById("friendnameError").style.display = "inline"; document.getElementById("friendname").select(); document.getElementById("friendname").focus(); return false; } 
	if (friendname == "    ") { hideAllErrors(); document.getElementById("friendnameError").style.display = "inline"; document.getElementById("friendname").select(); document.getElementById("friendname").focus(); return false; } 
	if (friendname == "     ") { hideAllErrors(); document.getElementById("friendnameError").style.display = "inline"; document.getElementById("friendname").select(); document.getElementById("friendname").focus(); return false; } 

	if (friendemail == "") { hideAllErrors(); document.getElementById("friendemailError").style.display = "inline"; document.getElementById("friendemail").select(); document.getElementById("friendemail").focus(); return false; }    	
	if (friendemail != "") { hideAllErrors(); var emailpattern = /^.+@.+\..{2,3}$/; if(!emailpattern.test(friendemail)) { document.getElementById("friendemailError").style.display = "inline"; document.getElementById("friendemail").select(); document.getElementById("friendemail").focus(); return false; } }    

  	return true;
  }
 
function hideAllErrors() 
{
	document.getElementById("yournameError").style.display = "none"
	document.getElementById("youremailError").style.display = "none"
	document.getElementById("friendnameError").style.display = "none"
	document.getElementById("friendemailError").style.display = "none"

}