// JavaScript Document
function check_form_fields(myform) {
	
	if(isblank(myform.email.value)) {
		alert("Error : You must provide an email address!");
		return false;
	}
	
	if(isblank(myform.confirmemail.value)) {
		alert("Error : You must confirm your email address!");
		return false;
	}
	if(myform.email.value != document.contact.confirmemail.value) {
		alert("Error : E-Mail address and confirmed email address do not match!");
		return false;
	}
	if(isblank(myform.message.value)) {
		alert("Error : No message was supplied!");
		return false;
	}
}

function isblank(s)
{
    for(var i = 0; i < s.length; i++) {
        var c = s.charAt(i);
        if ((c != ' ') && (c != '\n') && (c != '\t')) return false;
    }
    return true;
}