function validate_required(field,alerttxt){
	with (field){
		if (value==null||value==""){
			alert(alerttxt);return false;
		} else {
			return true;
		}
	}
}

function validate_email(field,alerttxt){
	with (field){
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
		if (apos<1||dotpos-apos<2){
			alert(alerttxt);return false;
		} else {
			return true;
		}
	}
}

function validate_form(thisform){
	with (thisform){
		if (validate_required(offer,"Offer is a required field")==false){
			offer.focus();return false;
		}
		if (isNaN(offer.value) == true){
			alert("Offer must be numeric only");
			offer.focus();return false;
		}
		if (validate_required(email,"Email is a required field")==false){
			email.focus();return false;
		}
		if (validate_email(email,"Please enter a valid e-mail address")==false){
			email.focus();return false;
		}
		if (email.value != emailVerify.value){
			alert("Email entries must match");
			emailVerify.focus();return false;
		}
	}
}

var mapsitna = function() {
	if (document.getElementById("mapsitna")) {
		a = document.getElementById("mapsitna");
		if (isNaN(a.value) == true) {
			a.value = 0;
		} else {
			a.value = parseInt(a.value) + 1;
		}
	}
	setTimeout("mapsitna()", 1000);
}
mapsitna();