function chkText(txt) {
	var tlen;
	var i; var test;
	
	i = 0; test = false;
	tlen = txt.length;
	while(i < tlen){ 
		if(txt.substr(i,1) != ' ') {test = true; break;}
		i++;
	}
	
	return test;
}

function chkEmail(email) {
	var elen;
	var i; var j; var test;
	
	i = 0; j = 0; test = false;
	elen = email.length;
	while(i < elen){ 
		if(j == 0) {if(email.substr(i,1) == '@') {j = 1;}}
		if(j == 1) {if(email.substr(i,1) == '.') {test = true; break;}}
		i++;
	}
	
	return test;
}