function isText(strString) {
	if (strString.length <1) {
		return false;
	} else {
		return true;
	}
}

function isNumeric(strString) {
   var strValidChars = " 0123456789.-";
   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;
   for (i = 0; i < strString.length && blnResult == true; i++) {
	  strChar = strString.charAt(i);
	  if (strValidChars.indexOf(strChar) == -1) {
		 blnResult = false;
	  }
   }
   return blnResult;
}

function isEmail(strString) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(strString)){
		return true;
	}
	return false;
}

function isDate(strString) {
	if (/^([0-3][0-9])\/([0-1][0-9])\/([0-9]{2,4})$/.test(strString)){
		return true;
	}
	return false;
}

function isDateTime(strString) {
	if (/^([0-3][0-9])\/([0-1][0-9])\/([0-9]{2,4}) ([0-2][0-9]):([0-5][0-9])$/.test(strString)){
		return true;
	}
	return false;
}

function chkForm(form) {
	
	// alert("checking");
	var errMessage = "";
	
	// check any required fields
	var fieldList = $(form.name).getElementsByClassName('req');

	for (var i = 0, j = fieldList.length; i < j; i++) {
		fieldList[i].removeClassName('checkFld');
		if(thisField = fieldList[i].hasClassName('text')) {
			if(!isText(fieldList[i].value)) {
				errMessage += fieldList[i].title + "\n";
				fieldList[i].addClassName('checkFld');
			}			
		}
		if(thisField = fieldList[i].hasClassName('numeric')) {
			if(!isNumeric(fieldList[i].value)) {
				errMessage += fieldList[i].title + "\n";
				fieldList[i].addClassName('checkFld');
			}
		}
		if(thisField = fieldList[i].hasClassName('email')) {
			if(!isEmail(fieldList[i].value)) {
				errMessage += fieldList[i].title + "\n";
				fieldList[i].addClassName('checkFld');
			}
		}
		if(thisField = fieldList[i].hasClassName('datetime')) {
			if(!isDateTime(fieldList[i].value)) {
				errMessage += fieldList[i].title + "\n";
				fieldList[i].addClassName('checkFld');
			}
		}
		if(thisField = fieldList[i].hasClassName('date')) {
			if(!isDate(fieldList[i].value)) {
				errMessage += fieldList[i].title + "\n";
				fieldList[i].addClassName('checkFld');
			}
		}
	}
	
	// now check any collection of fields where of which one must be completed
	var fieldList = $(form.name).getElementsByClassName('req_opt');
	
	var array = new Array();
	
	// loop all fields adding to array 
	for (var i = 0, j = fieldList.length; i < j; i++) {
		fieldList[i].removeClassName('checkFld');
		if(thisField = fieldList[i].hasClassName('text')) {
			if(!isText(fieldList[i].value)) {
				array.push(fieldList[i].title);
			}			
		}
		if(thisField = fieldList[i].hasClassName('numeric')) {
			if(!isNumeric(fieldList[i].value)) {
				array.push(fieldList[i].title);
			}
		}
		if(thisField = fieldList[i].hasClassName('email')) {
			if(!isEmail(fieldList[i].value)) {
				array.push(fieldList[i].title);
			}
		}
		if(thisField = fieldList[i].hasClassName('datetime')) {
			if(!isDateTime(fieldList[i].value)) {
				array.push(fieldList[i].title);
			}
		}
		if(thisField = fieldList[i].hasClassName('date')) {
			if(!isDate(fieldList[i].value)) {
				array.push(fieldList[i].title);
			}
		}
	}
	
	// if array is set to same length as optional required fields
	if ((fieldList.length != 0) && (array.length == fieldList.length)) {
		
		// loop all fields adding new class attribute
		for (var i = 0, j = fieldList.length; i < j; i++) {
			fieldList[i].removeClassName('checkFld');
			if(thisField = fieldList[i].hasClassName('text')) {
				if(!isText(fieldList[i].value)) {
					fieldList[i].addClassName('checkFld');
				}			
			}
			if(thisField = fieldList[i].hasClassName('numeric')) {
				if(!isNumeric(fieldList[i].value)) {
					fieldList[i].addClassName('checkFld');
				}
			}
			if(thisField = fieldList[i].hasClassName('email')) {
				if(!isEmail(fieldList[i].value)) {
					fieldList[i].addClassName('checkFld');
				}
			}
			if(thisField = fieldList[i].hasClassName('datetime')) {
				if(!isDateTime(fieldList[i].value)) {
					fieldList[i].addClassName('checkFld');
				}
			}
			if(thisField = fieldList[i].hasClassName('date')) {
				if(!isDate(fieldList[i].value)) {
					fieldList[i].addClassName('checkFld');
				}
			}
		}
		
		errMessage +=  "Please select " + array.join(" or ");
	}

	if (errMessage != "") {
		alert(errMessage);
		return false;
	}	
	else {
		return true;
		//return document.forms['badgaform'].submit();
	}

}

function chkVenueListCheckBoxes(chkBox) {
	
	var chkbox_values_array=(chkBox.value).split("_");
	
	var errMessage = "";
	// check any required fields

	if (errMessage != "") {
		alert(errMessage);
		return;
	}	
	
	//document.forms['badga_venue_list_form'].submit();
}

function chkPostcode(postcode) {
	
	test = postcode.value; 
	size = test.length;
	
	if (size == 0) {
		return true;
	}
	
	test = test.toUpperCase(); //Change to uppercase
	
	while (test.slice(0,1) == " ") //Strip leading spaces
	{
		test = test.substr(1,size-1);
		size = test.length;
	}
	
	while(test.slice(size-1,size)== " ") //Strip trailing spaces
	{
		test = test.substr(0,size-1);
		size = test.length;
	}
	
	//document.find_venue_form.search_postcode.value = test; //write back to form field
	if ((size < 6 || size > 8)
	|| (!(isNaN(test.charAt(0))))
	|| (isNaN(test.charAt(size-3)))
	|| (!(isNaN(test.charAt(size-2))))
	|| (!(isNaN(test.charAt(size-1))))
	|| (!(test.charAt(size-4) == " ")))
	{ //Code length rule
		alert(test + " is not a valid postcode");
		//postcode.addClassName('checkFld');
		postcode.focus();
		return false;
	}
	 
	count1 = test.indexOf(" ");
	count2 = test.lastIndexOf(" ");
	if (count1 != count2){//only one space rule
		alert(test + " is not a valid postcode");
		//postcode.addClassName('checkFld');
		postcode.focus();
		return false;
	}
	
	return true;

}

function revealDescriptionBox(form)
{
	document.getElementById('updated_Description_formID').value = form.name;
    window.onscroll = function () { 
		document.getElementById('modalPage').style.top = document.body.scrollTop; 
	};
	document.getElementById('updated_Description').value = document.forms[form.name].Description.value;
    document.getElementById('modalPage').style.display = "block";
	document.getElementById('updated_Description').focus();
    document.getElementById('modalPage').style.top = document.body.scrollTop;
}

function hideDescriptionBox(update)
{
	var formName = document.getElementById('updated_Description_formID').value;
	if (update == 'true') {
		document.forms[formName].Description.value = document.getElementById('updated_Description').value;
	}
    document.getElementById('modalPage').style.display = "none";
	document.forms[formName].Description.focus();
}

function revealViewDescriptionBox(form)
{

    window.onscroll = function () { 
		document.getElementById('modalPageView').style.top = document.body.scrollTop; 
	};
	document.getElementById('view_Description').value = document.forms[form.name].Description.value;
    document.getElementById('modalPageView').style.display = "block";
	document.getElementById('view_Description').focus();
    document.getElementById('modalPageView').style.top = document.body.scrollTop;
}

function hideViewDescriptionBox()
{
    document.getElementById('modalPageView').style.display = "none";
}

function showHideTaxIcon(form) {
	var tax_icon = "tax_icon_" + form.name + "";
	if (document.forms[form.name].TaxType.value == "N/A") {
		document.getElementById(tax_icon).style.display = "none";
	} else {
		document.getElementById(tax_icon).style.display = "inline";
	}
}

function windopen(id,source) {
	window.open("/includes/global_confirm_delete.php?id="+id+"&source="+source);
}