function validateText(field, descField) {
	if (field.value == "") {
		alert ("Please complete the " + descField + " field.")
		field.focus();
		return (false);
	}
	return (true)
}
function validateSingleChkbox(field, descField) {
	if (!field.checked) {
		alert ("Please complete the " + descField + ".")
		field.focus();
		return (false);
	}
	return (true)
}
function validateChkbox(field, descField) {
	var valid
	valid = false
	for (i = 0; i < field.length; i++) {
		if (field[i].checked){
			valid = true
		}
	}
	if (!valid) {
		alert ("Please complete the " + descField + ".")
		field[0].focus();
		return (false);
	}
	return (true)
}
function validateCombo(field, descField) {
	with(field) {
		if (options[selectedIndex].text == "") {
		alert ("Please complete the " + descField + " field.")
		field.focus();
		return (false);
		}
		return (true)
	}
}
function validateNumber(field, descField) {
	with(field) {
		var re = /,/g 
		var tmpNum = parseFloat(field.value.replace(re,""))
		if (Number(tmpNum) != tmpNum) {
			alert ("Please enter a valid number for the " + descField + " field.");
			field.focus();
			return (false);
		}
		return (true)
	}
}
function isFloat(s,allowCommas) { 
        var result; 
        var re = /,/g 
        if(typeof(allowCommas)=='undefined') { var allowCommas = false; } 
        
        if (allowCommas) { 
                result = s != "" && parseFloat(s.replace(re,"")) == s.replace(re,""); 
        } 
        else { 
                result = s != "" && parseFloat(s) == s; 
        } 
        return result;         
} 
//Pop up window functions
function openWindow (url, strWidth, strHeight) {
	//Get the screen size
//	if (document.all) {
//	   w = document.body.clientWidth;
//	   h = document.body.clientHeight;
//	}
//	else if (document.layers) {
//	   w = window.innerWidth;
//	   h = window.innerHeight;
//	}
	//Calc the centre position
	w = 1024;
	h = 768;
	var topPos = (h-strHeight)/2, leftPos = (w-strWidth)/2;
	//Create the window
     popWindow = window.open ( url,'popWindow', 'width=' + strWidth + ',height=' + strHeight + 'top=' + topPos + ',left=' + leftPos + ',toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1')
     popWindow.focus();
}
function openWindowMenu (url, strWidth, strHeight) {
	//Get the screen size
//	if (document.all) {
//	   w = document.body.clientWidth;
//	   h = document.body.clientHeight;
//	}
//	else if (document.layers) {
//	   w = window.innerWidth;
//	   h = window.innerHeight;
//	}
	//Calc the centre position
	w = 1024;
	h = 768;
	var topPos = (h-strHeight)/2, leftPos = (w-strWidth)/2;
	//Create the window
     popWindow = window.open ( url,'popWindow', 'width=' + strWidth + ',height=' + strHeight + 'top=' + topPos + ',left=' + leftPos + ',toolbar=0,location=0,directories=0,status=0,menubar=1,scrollbars=1,resizable=1')
     popWindow.focus();
}
function showProcessing() {
	processing.style.visibility = "visible";
}
function hideProcessing() {
	processing.style.visibility = "hidden";
}
function isValidObject(objToTest) {
	if (null == objToTest) {
		return false;
	}
	if ("undefined" == typeof(objToTest) ) {
		return false;
	}
	return true;
}