function goLink(theURL) {
	window.location.href = theURL;
}

function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

function validRequired(formField,fieldLabel)
{
	var result = true;
	
	if (formField.value == "")
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		formField.className = 'formFieldSelected';
		result = false;
	} else{
	formField.className = '';
	result = true;
	}
	
	return result;
}

function allDigits(str)
{
	return inValidCharSet(str,"0123456789.");
}

function inValidCharSet(str,charset)
{
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)
		{
			result = false;
			break;
		}
	
	return result;
}

function validEmail(formField,fieldLabel,required)
{
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) )
	{
		alert("Please enter a complete email address in the form: yourname@yourdomain.com");
		formField.focus();
		formField.className = 'formFieldSelected';
		result = false;
	}
   
  return result;

}

function validNum(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		if (!allDigits(formField.value))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			formField.className = 'formFieldSelected';
			result = false;
		}
	} 
	
	return result;
}


function validInt(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		var num = parseInt(formField.value,10);
 		if (isNaN(num))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();
			formField.className = 'formFieldSelected';		
			result = false;
		}
	} 
	
	return result;
}


function validDate(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		var elems = formField.value.split("/");
 		
 		result = (elems.length == 3); // should be three components
 		
 		if (result)
 		{
 			var month = parseInt(elems[0],10);
  			var day = parseInt(elems[1],10);
 			var year = parseInt(elems[2],10);
			result = allDigits(elems[0]) && (month > 0) && (month < 13) &&
					 allDigits(elems[1]) && (day > 0) && (day < 32) &&
					 allDigits(elems[2]) && ((elems[2].length == 2) || (elems[2].length == 4));
 		}
 		
  		if (!result)
 		{
 			alert('Please enter a date in the format MM/DD/YYYY for the "' + fieldLabel +'" field.');
			formField.focus();		
		}
	} 
	
	return result;
}

function validFieldMatch(formField1, formField2, fieldText)
{
	var result = true;	
	if (formField1.value != formField2.value)
	{
		alert('Please make sure your ' + fieldText + ' has been entered correctly twice.');
		formField1.focus();
		formField1.className = 'formFieldSelected';
		formField2.className = 'formFieldSelected';
		result = false;
	}	
	return result;
}

function goConfirm(theQuestion,theLink) {
	var answer = confirm(theQuestion)
	if (answer){ window.location.href = theLink}
}

function goPop(theLink,theWidth,theHeight,isResizable,isScrollable) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(theLink, '" + id + "', 'toolbar=0,scrollbars=' + isScrollable + ',location=0,statusbar=1,menubar=0,resizable=' + isResizable + ',width=' + theWidth + ',height=' + theHeight);");
}

function goHelp(theHelpID){
	goPop('helppop.asp?mode=' + theHelpID,'475','350');
}

talismanMenu = function() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("topnavul");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" over";
				}
				node.onmouseout=function() {
					this.className=this.className.replace(" over", "");
				}
			}
		}
	}
}

function showHide(idName){
	document.getElementById(idName).style.display = document.getElementById(idName).style.display=='none' ? '' : 'none';
}

function insertImagePath(theImagePath){
	document.getElementById("selectImage").value = theImagePath;
}