function checkForm(form)
{
	var reval = true;
	var errortxt = '';
	var bFocus = false;
			
	if (form.vcFirstName.value.length < 2) {
		errortxt+="Please enter your first name.\n";
		reval = false;
		if (!bFocus) { form.vcFirstName.focus(); bFocus=true; }
	}
	
	if (form.vcLastName.value.length < 2) {
		errortxt+="Please enter your last name.\n";
		reval = false;
		if (!bFocus) { form.vcLastName.focus(); bFocus=true; }
	}
			
	if ((form.vcEmail.value.length < 5)) {
		errortxt+="Please enter your email address.\n";
		reval = false;
	}
	
	if ((form.vcEmail.value.length > 4) && !(echeck(form.vcEmail.value))) {
		errortxt+="Please enter a valid email address.\n";
		reval = false;
		if (!bFocus) { form.vcEmail.focus(); bFocus=true; }
	}
	
	if (form.vcPassword.value.length < 6) {
		errortxt+="Please enter your password (at least 6 characters long).\n";
		reval = false;
		if (!bFocus) { form.vcPassword.focus(); bFocus=true; }
	}
	
	if (form.vcConfirmPassword.value.length < 6) {
		errortxt+="Please confirm your password (at least 6 characters long).\n";
		reval = false;
		if (!bFocus) { form.vcConfirmPassword.focus(); bFocus=true; }
	}
	
	if ((form.vcPassword.value.length > 5) && (form.vcConfirmPassword.value.length > 5)) {
		if (form.vcConfirmPassword.value.length != form.vcPassword.value.length) {
			errortxt+="Your entries in the two password fields do not match. Please try again.\n";
			reval = false;
			if (!bFocus) { form.vcConfirmPassword.focus(); bFocus=true; }
		}
		if (form.vcPassword.value.indexOf(" ") >= 0) {
			errortxt+="Please make sure your password does not contain spaces.\n";
			reval = false;
			if (!bFocus) { form.vcPassword.focus(); bFocus=true; }
		}
	}
						
	if(!reval){alert(errortxt)}
	return reval;
}

function echeck(str) {
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if (str.indexOf(at)==-1){ return false; }
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){ return false; }
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){ return false; }
	if (str.indexOf(at,(lat+1))!=-1){ return false; }
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){ return false; }
	if (str.indexOf(dot,(lat+2))==-1){ return false; }
	if (str.indexOf(" ")!=-1){ return false; }
	return true;					
}