var helpTimeout = null;
var helpToggle = true;
function popup(url, width, height) 
{
	var pWin = window.open(url,"NewWin","height=" + height + ",width=" + width + ",location=no,toolbar=no,scrollbars=yes,resizable=no,menubar=no");
	pWin.focus();
}
function newwindow(url, width, height) 
{
	var Secondwin;
	Secondwin = window.open(url,"NewWin2","height=" + height + ",width=" + width + ",location=no,toolbar=no,scrollbars=yes,resizable=yes,menubar=no");
}
function limitLength( control, length )
{
	if( control.value.length > length )
	{
		control.value = control.value.substr( 0, length );
	}
}

function validatename(id, name, url, textbox) {
    if (name == '') return;
    try {
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e1) {
        try {
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e2) {
            xmlhttp = false;
        }
    }
    if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
        xmlhttp = new XMLHttpRequest();
    }
    document.body.style.cursor = 'wait';
    var errorMessage = "Sorry, the user name: " + name + "\nis already in use.";
    var responseFunction = function(textbox, errorMessage) {
        if (xmlhttp.readyState == 4 && xmlhttp.responseText == "exist") {
            alert(errorMessage);
            textbox.value = '';
            textbox.focus();
        }
        document.body.style.cursor = 'auto';
    }
    xmlhttp.onreadystatechange = function() { responseFunction(textbox, errorMessage) };
    var sURL = url + "validatename.ashx?id=" + id + "&name=" + name;
    xmlhttp.open("GET", sURL, true);
    xmlhttp.send(null);
}


function validateemail(contactId, supplierId, email, url, textbox) {
    if (email == '') return;

    try {
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e1) {
        try {
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e2) {
            xmlhttp = false;
        }
    }
    if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
        xmlhttp = new XMLHttpRequest();
    }
    document.body.style.cursor = 'wait';
    var errorMessage = "Sorry - the email address is already in use.";
    var responseFunction = function(textbox, errorMessage) {
        if (xmlhttp.readyState == 4 && xmlhttp.responseText == "exist") {
            alert(errorMessage);
            textbox.value = '';
            textbox.focus();
        }
        document.body.style.cursor = 'auto';
    }
    xmlhttp.onreadystatechange = function() { responseFunction(textbox, errorMessage) };
    var sURL = url + "validateemail.ashx?contactId=" + contactId + "&supplierId=" + supplierId + "&email=" + email;
    xmlhttp.open("GET", sURL, true);
    xmlhttp.send(null);
}


function getTop(o, sBreakAt) 
{
	var iTop = 0;
	if (o.offsetParent) {
		if(sBreakAt && (oParent = getElement(sBreakAt))) 
		{
			while (o.offsetParent && (o.offsetParent != oParent)){
				iTop += o.offsetTop;o = o.offsetParent;
			}
		}
		else
		{	
			while (o.offsetParent){
				iTop += o.offsetTop;o = o.offsetParent;
			}
		}
		
	} else if (o.y) {
		iTop += o.y;
	}
	return iTop;
}

function getLeft(o) 
{
	var iLeft = 0;
	if (o.offsetParent) {
		while (o.offsetParent) {
			iLeft += o.offsetLeft;o = o.offsetParent;
		}
	} else if (o.x) {
		iLeft += o.x;
	}
	return iLeft;
}

function setEvent(oElement, sEventType, fEventHandler) 
{
	if (typeof(oElement) == 'string')
		oElement = getElement(oElement);
	if(window.attachEvent) {
		oElement.attachEvent('on'+sEventType, fEventHandler);
	} else if (window.addEventListener) {
		oElement.addEventListener(sEventType, fEventHandler, false);
	} else {
		
		if(oElement['on'+sEventType]) {		
			oldFunc = oElement['on'+sEventType];
			oElement['on'+sEventType] = function() {
				oldFunc;
				fEventHandler;
			}
		} else {
			oElement['on'+sEventType] = fEventHandler;
		}
	}
}

function getElementsByTagAndClass(a_sTagName, a_sClassName) 
{
	var aReturnElements = [];
	if(document.getElementsByTagName) {
		var aAllTags = document.getElementsByTagName(a_sTagName);
		for(j = 0; j < aAllTags.length; j++) {
			var oCurrentTag = aAllTags[j];
			if(oCurrentTag.className == a_sClassName) {
				aReturnElements[aReturnElements.length] = oCurrentTag;
			}
		}
	}
	return aReturnElements;
}

function getElement(a_sElementId) 
{
	var oElement = (document.getElementById) ? document.getElementById(a_sElementId) : (document.all) ? document.all[a_sElementId] : null;
	if(oElement == null) {	
		for(i = 0; i < document.forms.length; i++) {
			var form = document.forms[i];
			if(form.name == a_sElementId) {
				return form;
			} else {
				for(j = 0; j < form.elements.length; j++) {
					element = form.elements[j];
					if(element.name == a_sElementId) {
						return element;
					}
				}
			}
		}
		if(document.images[a_sElementId]) {
			return document.images[a_sElementId];
		} else if(document.anchors[a_sElementId]) {
			return document.anchors[a_sElementId];
		} else if (document.layers) { 
		}
	}
	return oElement;
}

function showFormHelp(sHeader, sInfo)
{
	var oHelp = getElement('formHelp');

	var oHelpHeader = getElement('formHelpHeader');
	var oHelpText = getElement('formHelpInfo');
	
	
	if(sHeader && sInfo)
	{
		oHelpHeader.innerHTML = sHeader;
		oHelpText.innerHTML = sInfo;
		if (helpToggle)
			oHelp.className = 'formHelpOn';
		oHelp.style.display = 'block';
	}
	else
		oHelp.style.display = 'none';
}

function hideFormHelp()
{
	var oHelp = getElement('formHelp');
	var oHelpToggle = getElement('formHelpMini');
	
	oHelpToggle.innerHTML = '?';
	oHelp.className = 'formHelpOff';
	
}

function toggleFormHelp()
{
	var oHelp = getElement('formHelp');
	var oHelpToggle = getElement('formHelpMini');
	if (oHelp.className == 'formHelpOff')
	{
		oHelp.className = 'formHelpOn';
		oHelpToggle.innerHTML = '&ndash;';
		helpToggle = true;
	}
	else
	{
		oHelp.className = 'formHelpOff';
		oHelpToggle.innerHTML = '?';
		helpToggle = false;
	}
	clearTimeout(helpTimeout);
}

function setFormHelp(thisElement)
{
	if (typeof(thisElement) == 'string')
		thisElement = getElement(thisElement);
	var y = getTop(thisElement);
	var x = getLeft(thisElement);
	var id = thisElement.id || thisElement.name;
	var oHelp = getElement('formHelp');
	var oHelpToggle = getElement('formHelpMini');
	
	if ( id.indexOf('Link') != -1 && !helpToggle)
		toggleFormHelp();
	oHelpToggle.innerHTML = '&ndash;';
	showFormHelp(helptips[id + 'Title'], helptips[id + 'Text']);
	if(y != 0 ) {
		if( isNaN( helptips[id + '_OffsetY'] ) )
			oHelp.style.top = y;
		else
			oHelp.style.top = y + parseInt( helptips[id + '_OffsetY'] );
	}
	if(x != 0 ) {
		if( isNaN( helptips[id + '_OffsetX'] ) )
			oHelp.style.left = x + thisElement.offsetWidth;
		else
			oHelp.style.left = x + thisElement.offsetWidth + parseInt( helptips[id + '_OffsetX'] );
	}
	
	clearTimeout(helpTimeout);
	helpTimeout = setTimeout("hideFormHelp()", Math.pow(oHelp.offsetHeight - 15,1.1) * 100 );
}

function attachHelpTexts()
{	
	for(var i = 0; i < document.forms[0].elements.length; i++) {
		if(document.forms[0].elements[i].getAttribute('id')) 
		{
			var element = document.forms[0].elements[i];
			if(element.onfocus == null)
			    element.onfocus = function (){setFormHelp(this);};
		}
	}
}

function toggleElementDisplay(thisElement)
{
	if (typeof(thisElement) == 'string')
		thisElement = getElement(thisElement);
	if(thisElement.style.display == 'none')
		thisElement.style.display = 'block';
	else
		thisElement.style.display = 'none';
}

function imgSrcReplace(oldString,newString)
{
	imgArray = document.images;
	for (i=0;i<imgArray.length;i++)
	{
		var localLinkSrc = imgArray[i].src;
		var localLinkIndex = localLinkSrc.indexOf(oldString);
		if (localLinkIndex >= 0)
		{
			imgArray[i].src = newString + localLinkSrc.substring(localLinkIndex + oldString.length);
		}
	}
}