function validate_friend()
	
{ var error = ""; 
	 
    if ( document.getElementById("friend").value == "" ) {
        error += "Enter your friend's email address.\n";
    }
	  
    if ((
    ( document.getElementById("friend").value.indexOf('@',0) == -1) ||
        ( document.getElementById("friend").value.indexOf('.',0) == -1)) &&
        ( document.getElementById("friend").value != "" )) {
        error += "Verify your friend's email is valid.\n";
    }
	  
    if ( document.getElementById("you").value == "" ) {
        error += "Enter your name.\n";
    }
		
    if ( document.getElementById("email").value == "" ) {
        error += "Enter your email address.\n";
    }
	  
    if ((
    ( document.getElementById("email").value.indexOf('@',0) == -1) ||
        ( document.getElementById("email").value.indexOf('.',0) == -1)) &&
        ( document.getElementById("email").value != "" )) {
        error += "Verify your email is valid.\n";
    }
	  
    if ( document.getElementById("note").value == "") {
        error += "Enter a message.\n";
    }

    if ( error != "" ) {
        alert(error);
        return false;
    } else {
        return true;
    }
	 
}
	 
function validate_contact()
	
{ var error = ""; 
	 
    if ( document.getElementById("name").value == "" ) {
        error += "Enter your name.\n";
    }
		
    if ( document.getElementById("email_address").value == "" ) {
        error += "Enter your email address.\n";
    }
	  
    if ((
    ( document.getElementById("email_address").value.indexOf('@',0) == -1) ||
        ( document.getElementById("email_address").value.indexOf('.',0) == -1)) &&
        ( document.getElementById("email_address").value != "" )) {
        error += "Verify your email is valid.\n";
    }
	  
    if ( document.getElementById("zip").value == "") {
        error += "Enter desired zip code.\n";
    }

    if ( document.getElementById("university").value == "") {
        error += "Choose a university.\n";
    }
	   
    if ( error != "" ) {
        alert(error);
        return false;
    } else {
        return true;
    }
	 
}