// mm funcs
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

// rollover
function sgRoll(oImg) {
	if (oImg.src.indexOf("-a.gif") == -1) {
		oImg.src = oImg.src.replace(".gif","-a.gif");
	} else {
		oImg.src = oImg.src.replace("-a.gif",".gif");
	}
	if (oImg.src.indexOf("-a.jpg") == -1) {
		oImg.src = oImg.src.replace(".jpg","-a.jpg");
	} else {
		oImg.src = oImg.src.replace("-a.jpg",".jpg");
	}
}

// border flasher
var orgClr, orgEl, orgI, flashTime;
function bFlash() {
	if (orgEl.style.borderColor == 'red') {
		orgEl.style.borderColor = orgClr;
	} else {
		orgEl.style.borderColor = 'red';
	}
	if (orgI > 4) {
		orgI = 0;
	} else {
		flashTime = window.setTimeout("bFlash()", 500)
		orgI = orgI+ 1;
	}
}
function flashBorder(objEl) {
	if (flashTime) { window.clearTimeout(flashTime); orgI = 0; orgEl.style.borderColor = orgClr; }
	if (objEl) {
		orgClr = objEl.style.borderColor;
		orgEl = objEl;
		orgI = 0;
		objEl.focus();
		flashTime = window.setTimeout("bFlash()", 500)
	}
}

// validate form
function validateForm(formObj) {
	vError = "";
	vField = "";
	if (formObj.valfields.value.length == 0) {
		vError = "Cannot find validation information";
	}
	else {
		valArray = formObj.valfields.value.split(",");
		for (i=0;i<valArray.length;i++) {
			if (valArray[i].indexOf(":") == -1) {
				thisInput = valArray[i];
				thisLabel = valArray[i];
			}
			else {
				thisInput = valArray[i].split(":")[0];
				thisLabel = valArray[i].split(":")[1];
			}
			if (thisInput == "suUserName") {
				if (formObj[thisInput].value.length < 3 | formObj[thisInput].value.length > 15) {
					vField = "suUserName";
					vError = "Username must be between 3 and 15 characters";
				}
			}
			if (thisInput == "suUserPass") {
				if (formObj[thisInput].value.length < 3 | formObj[thisInput].value.length > 15) {
					vField = "suUserPass";
					vError = "Password must be between 3 and 15 characters";
				}
			}
			if (formObj[thisInput].value.length == 0) {
				vError = "You must fill in the " + thisLabel + " field to continue.";
				vField = thisInput;
			}
			if (thisInput == "suUserPassCheck") {
				if (formObj.suUserPassCheck.value != formObj.suUserPass.value && formObj.suUserPass.value.length != 0) {
					vField = "suUserPass";
					vError = "Passwords do not match. Please retype and confirm your password.";
				}
			}
		}
	}
	if (vError.length != 0) {
		window.alert(vError);
		if (vField.length != 0) { formObj[vField].focus(); flashBorder(formObj[vField]) }
		return false;
	}
	else { return true; }
}

// date code
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
	for (i = 0; i < s.length; i++){   
		// Check that current character is number.
		var c = s.charAt(i);
		if (((c < "0") || (c > "9"))) return false;
	}
	// All characters are numbers.
	return true;
}

function stripCharsInBag(s, bag){
	var i;
	var returnString = "";
	// Search through string's characters one by one.
	// If character is not in bag, append to returnString.
	for (i = 0; i < s.length; i++){   
		var c = s.charAt(i);
		if (bag.indexOf(c) == -1) returnString += c;
	}
	return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
	// EXCEPT for centurial years which are not also divisible by 400.
	return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
} 
return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : dd/mm/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}

// number ordering code
function selMoveUp(urlTo,sElement,sIndex) {
	if (sIndex != 0) {
		thisoption = sElement.options(sIndex);
		prevtext = sElement.options(sIndex -1).text;
		prevval = sElement.options(sIndex -1).value;
		sElement.options(sIndex -1).text = thisoption.text;
		sElement.options(sIndex -1).value = thisoption.value;
		sElement.options(sIndex).text = prevtext;
		sElement.options(sIndex).value = prevval;
		sElement.selectedIndex = sIndex - 1;
		document.location = urlTo + "?SubOrder=1&Priority=" + getPriority(sElement) + "&Ret=" + (sIndex -1);
	}
}

function selMoveDown(urlTo,sElement,sIndex) {
	if (sIndex != sElement.options.length -1) {
		thisoption = sElement.options(sIndex);
		nextoption = sElement.options(sIndex +1);
		nexttext = sElement.options(sIndex +1).text;
		nextval = sElement.options(sIndex +1).value;
		nextoption.text = thisoption.text;
		nextoption.value = thisoption.value;
		thisoption.text = nexttext;
		thisoption.value = nextval;
		sElement.selectedIndex = sIndex + 1;
		document.location = urlTo + "?SubOrder=1&Priority=" + getPriority(sElement) + "&Ret=" + (sIndex +1);
	}
}

function getPriority(pElement) {
	pri = ""
	for (var i = 0; i < pElement.options.length; i++) {
		    pri = pri + pElement.options[i].value + ",";
		}
	return pri;
}

// ensure numeric data in input field
function ensureNumeric(objIn) {
	if (isNaN(objIn.value)) {
		objIn.value = "";
		window.alert("Please fill this field numerically only");
		flashBorder(objIn);
		return false;
	}
	return true;
}

function isValidUKMobile(uMobile) {
	var bRet = false
	if (uMobile && uMobile.length > 4) {
		var re = /^(\+44\s?7\d{3}|\(?07\d{3}\)?)\s?\d{3}\s?\d{3}$/i
		if (re.test(uMobile)) { bRet = true }
	}
	return bRet
}

function isValidUKPhone(uPhone) {
	var bRet = false
	if (uPhone && uPhone.length > 4) {
		var re = /^((\(?0\d{4}\)?\s?\d{3}\s?\d{3})|(\(?0\d{3}\)?\s?\d{3}\s?\d{4})|(\(?0\d{2}\)?\s?\d{4}\s?\d{4}))(\s?\#(\d{4}|\d{3}))?$/i
		if (re.test(uPhone)) { bRet = true }
	}
	return bRet
}

function isValidEmail(sEmail) {
	var bRet = false
	if (sEmail && sEmail.length > 4) {
		var re = /^([a-zA-Z0-9_\-])+(\.([a-zA-Z0-9_\-])+)*@((\[(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5]))\]))|((([a-zA-Z0-9])+(([\-])+([a-zA-Z0-9])+)*\.)+([a-zA-Z])+(([\-])+([a-zA-Z0-9])+)*))$/i
		if (re.test(sEmail)) { bRet = true }
	}
	return bRet
}

function isValidPostcode(sPostcode) {
	var bRet = false
	if (sPostcode && sPostcode.length > 4) {
		var re = /[a-zA-Z][a-zA-Z]?[0-9][0-9]? ?[0-9][a-zA-Z][a-zA-Z]/i
		if (re.test(sPostcode)) { bRet = true }
	}
	return bRet
}

// position code
function getOffsetLeft (el) {
  var ol = el.offsetLeft;
  while ((el = el.offsetParent) != null)
    ol += el.offsetLeft;
  return ol;
}

function getOffsetTop (el) {
  var ot = el.offsetTop;
  while((el = el.offsetParent) != null)
   ot += el.offsetTop;
  return ot;
}

function showImageCoordinates (image) {
  var x = getOffsetLeft(image);
  var y = getOffsetTop(image);
  alert(x + ':' + y);
}