/* The following function creates an XMLHttpRequest object... */
function createRequestObject(){
	var request_o; //declare the variable to hold the object.
	var browser = navigator.appName; //find the browser name
	if(browser == "Microsoft Internet Explorer"){
		/* Create the object using MSIE's method */
		request_o = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		/* Create the object using other browser's method */
		request_o = new XMLHttpRequest();
	}
	return request_o; //return the object
}

/* You can get more specific with version information by using 
	parseInt(navigator.appVersion)
	Which will extract an integer value containing the version 
	of the browser being used.
*/
	
/* The variable http will hold our new XMLHttpRequest object. */
var http = new createRequestObject(); 



/* Function called to get a SQLTable */
function sendEmail(){
//	Description=document.frmPartSummaryEditable.elements('Description['+ItemID+']').value;
//	document.frmPartSummaryEditable.elements('Description['+ItemID+']').disabled=true;
	ESubject=document.frmEmailSender.elements('emailSubject').value;
	ETo=document.frmEmailSender.elements('emailTo').value;
	EFrom=document.frmEmailSender.elements('emailFrom').value;
	EName=document.frmEmailSender.elements('emailName').value;
	EBody=document.frmEmailSender.elements('Comments').value;
	//alert(ElementName+' '+Val+' '+ColName);
//	document.frmDownloadSummaryEditable.elements(ElementName).disabled=true;
	var getStr='action=SendEmail&EBody='+EBody+'&ESubject='+ESubject+'&EFrom='+EFrom+'&ETo='+ETo+'&EName='+EName;
	//alert("getStr "+getStr);
	http.open('get', 'SupportSwitch.php?' + getStr,true);

	http.onreadystatechange = function (){ handleSendEmail()}; 
	http.send(null);
}

function sendEmail2(msg){
//	Description=document.frmPartSummaryEditable.elements('Description['+ItemID+']').value;
//	document.frmPartSummaryEditable.elements('Description['+ItemID+']').disabled=true;
	ESubject=document.frmEmailSender.elements('emailSubject').value;
	ETo=document.frmEmailSender.elements('emailTo').value;
	EFrom=document.frmEmailSender.elements('emailFrom').value;
	EName=document.frmEmailSender.elements('emailName').value;
	EBody=document.frmEmailSender.elements('Comments').value;
	//alert(ElementName+' '+Val+' '+ColName);
//	document.frmDownloadSummaryEditable.elements(ElementName).disabled=true;
	var getStr='action=SendEmail&EBody='+msg+'&ESubject='+ESubject+'&EFrom='+EFrom+'&ETo='+ETo+'&EName='+EName;
	//alert("getStr "+getStr);
//	http.open('get', 'SupportSwitch.php?' + getStr,true);
	http.open('get', 'SupportManager.php?' + getStr,true);

	http.onreadystatechange = function (){ handleSendEmail()}; 
	http.send(null);
}

/* Function called to handle the list that was returned from the internal_request.php file.. */
function handleSendEmail(){

	if(http.readyState == 4){ //Finished loading the response
		/* We have got the response from the server-side script,
			let's see just what it was. using the responseText property of 
			the XMLHttpRequest object. */
		//var NewDiv;
		var response = http.responseText;
//		alert(response);
		/* And now we want to change the product_categories <div> content.
			we do this using an ability to get/change the content of a page element 
			that we can find: innerHTML. */
//		document.frmDownloadSummaryEditable.elements(ElementName).disabled=false;
//		document.getElementById('NumInStock'+ItemID).innerHTML =response;

	}
	else{
	//	document.getElementById('Status_cage').innerHTML = '<font color=red>Reloading... </font>';
	}
}
function getSNPartNo(){
//	Description=document.frmPartSummaryEditable.elements('Description['+ItemID+']').value;
//	document.frmPartSummaryEditable.elements('Description['+ItemID+']').disabled=true;
	SN=document.getElementById('SerialNumber').value;
	var getStr='action=GetSNPartNo&SN='+SN;
	//alert("getStr "+getStr);
	http.open('get', 'SupportManager.php?' + getStr,true);

	http.onreadystatechange = function (){ handleGetSNPartNo()}; 
	http.send(null);
}

/* Function called to handle the list that was returned from the internal_request.php file.. */
function handleGetSNPartNo(){

	if(http.readyState == 4){ //Finished loading the response
		/* We have got the response from the server-side script,
			let's see just what it was. using the responseText property of 
			the XMLHttpRequest object. */
		//var NewDiv;
		var response = http.responseText;
		//alert(response);
		document.getElementById('PartNumber').value=response;
		/* And now we want to change the product_categories <div> content.
			we do this using an ability to get/change the content of a page element 
			that we can find: innerHTML. */
//		document.frmDownloadSummaryEditable.elements(ElementName).disabled=false;
//		document.getElementById('NumInStock'+ItemID).innerHTML =response;

	}
	else{
	//	document.getElementById('Status_cage').innerHTML = '<font color=red>Reloading... </font>';
	}
}
function getWarrantyLevel(y){
	//SN=document.getElementById('SerialNumber').value;
	SN=document.getElementById('eu['+y+'][serial]').value;
	document.getElementById('eu['+y+'][serial]').disabled=true;
	var getStr='action=HWPWarrantyLevel&sn='+SN;
	//alert("getStr "+getStr);
	http.open('get', 'SupportManager.php?' + getStr,true);
	http.onreadystatechange = function (){ handleGetWarrantyLevel(y)}; 
	http.send(null);
}

function handleGetWarrantyLevel(y){
	if(http.readyState == 4){ //Finished loading the response
		var response = http.responseText;
		//alert(response);
		if (response=='na'){
			alert('Product is not eligible for warranty extension.')
		}
		else if(response=='.'){
			alert('Invalid Serial Number.');
		}
		else{
			var tin = document.getElementsByTagName('input');
			for (idx in tin){
				//alert(String(tin[idx].id));
				if (String(tin[idx].id).indexOf('eu['+y+'][fk]')!=-1){
					//alert(tin[idx].id+ ' '+tin[idx].className);
					if (String(tin[idx].className).indexOf('HWP'+response)!=-1){
						tin[idx].disabled=false;
					}
					else{
						tin[idx].disabled=true;
					}
				}
			}
		}
		document.getElementById('eu['+y+'][serial]').disabled=false;
		
		
	}
	else{
	//	document.getElementById('Status_cage').innerHTML = '<font color=red>Reloading... </font>';
	}
}


addEvent(window, "load", sortables_init);

var SORT_COLUMN_INDEX;

function sortables_init() {
    // Find all tables with class sortable and make them sortable
    if (!document.getElementsByTagName) return;
    tbls = document.getElementsByTagName("table");
    for (ti=0;ti<tbls.length;ti++) {
        thisTbl = tbls[ti];
        if (((' '+thisTbl.className+' ').indexOf("sortable") != -1) && (thisTbl.id)) {
            //initTable(thisTbl.id);
            ts_makeSortable(thisTbl);
        }
    }
}

function ts_makeSortable(table) {
    if (table.rows && table.rows.length > 0) {
        var firstRow = table.rows[0];
    }
    if (!firstRow) return;
    
    // We have a first row: assume it's the header, and make its contents clickable links
    for (var i=0;i<firstRow.cells.length;i++) {
        var cell = firstRow.cells[i];
        var txt = ts_getInnerText(cell);
        cell.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this);return false;">'+txt+'<span class="sortarrow">&nbsp;&nbsp;&nbsp;</span></a>';
    }
}

function ts_getInnerText(el) {
	if (typeof el == "string") return el;
	if (typeof el == "undefined") { return el };
	if (el.innerText) return el.innerText;	//Not needed but it is faster
	var str = "";
	
	var cs = el.childNodes;
	var l = cs.length;
	for (var i = 0; i < l; i++) {
		switch (cs[i].nodeType) {
			case 1: //ELEMENT_NODE
				str += ts_getInnerText(cs[i]);
				break;
			case 3:	//TEXT_NODE
				str += cs[i].nodeValue;
				break;
		}
	}
	return str;
}

function ts_resortTable(lnk) {
    // get the span
    var span;
    for (var ci=0;ci<lnk.childNodes.length;ci++) {
        if (lnk.childNodes[ci].tagName && lnk.childNodes[ci].tagName.toLowerCase() == 'span') span = lnk.childNodes[ci];
    }
    var spantext = ts_getInnerText(span);
    var td = lnk.parentNode;
    var column = td.cellIndex;
    var table = getParent(td,'TABLE');
    
    // Work out a type for the column
    if (table.rows.length <= 1) return;
    var itm = ts_getInnerText(table.rows[1].cells[column]);
    sortfn = ts_sort_caseinsensitive;
    if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/)) sortfn = ts_sort_date;
    if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/)) sortfn = ts_sort_date;
    if (itm.match(/^[£$]/)) sortfn = ts_sort_currency;
    if (itm.match(/^[\d\.]+$/)) sortfn = ts_sort_numeric;
    SORT_COLUMN_INDEX = column;
    var firstRow = new Array();
    var newRows = new Array();
    for (i=0;i<table.rows[0].length;i++) { firstRow[i] = table.rows[0][i]; }
    for (j=1;j<table.rows.length;j++) { newRows[j-1] = table.rows[j]; }

    newRows.sort(sortfn);

    if (span.getAttribute("sortdir") == 'down') {
        ARROW = '&nbsp;&nbsp;&uarr;';
        newRows.reverse();
        span.setAttribute('sortdir','up');
    } else {
        ARROW = '&nbsp;&nbsp;&darr;';
        span.setAttribute('sortdir','down');
    }
    
    // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
    // don't do sortbottom rows
    for (i=0;i<newRows.length;i++) { if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('sortbottom') == -1))) table.tBodies[0].appendChild(newRows[i]);}
    // do sortbottom rows only
    for (i=0;i<newRows.length;i++) { if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') != -1)) table.tBodies[0].appendChild(newRows[i]);}
    
    // Delete any other arrows there may be showing
    var allspans = document.getElementsByTagName("span");
    for (var ci=0;ci<allspans.length;ci++) {
        if (allspans[ci].className == 'sortarrow') {
            if (getParent(allspans[ci],"table") == getParent(lnk,"table")) { // in the same table as us?
                allspans[ci].innerHTML = '&nbsp;&nbsp;&nbsp;';
            }
        }
    }
        
    span.innerHTML = ARROW;
}

function getParent(el, pTagName) {
	if (el == null) return null;
	else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase())	// Gecko bug, supposed to be uppercase
		return el;
	else
		return getParent(el.parentNode, pTagName);
}
function ts_sort_date(a,b) {
    // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
    if (aa.length == 10) {
        dt1 = aa.substr(6,4)+aa.substr(3,2)+aa.substr(0,2);
    } else {
        yr = aa.substr(6,2);
        if (parseInt(yr) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
        dt1 = yr+aa.substr(3,2)+aa.substr(0,2);
    }
    if (bb.length == 10) {
        dt2 = bb.substr(6,4)+bb.substr(3,2)+bb.substr(0,2);
    } else {
        yr = bb.substr(6,2);
        if (parseInt(yr) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
        dt2 = yr+bb.substr(3,2)+bb.substr(0,2);
    }
    if (dt1==dt2) return 0;
    if (dt1<dt2) return -1;
    return 1;
}

function ts_sort_currency(a,b) { 
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
    return parseFloat(aa) - parseFloat(bb);
}

function ts_sort_numeric(a,b) { 
    aa = parseFloat(ts_getInnerText(a.cells[SORT_COLUMN_INDEX]));
    if (isNaN(aa)) aa = 0;
    bb = parseFloat(ts_getInnerText(b.cells[SORT_COLUMN_INDEX])); 
    if (isNaN(bb)) bb = 0;
    return aa-bb;
}

function ts_sort_caseinsensitive(a,b) {
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).toLowerCase();
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).toLowerCase();
    if (aa==bb) return 0;
    if (aa<bb) return -1;
    return 1;
}

function ts_sort_default(a,b) {
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
    if (aa==bb) return 0;
    if (aa<bb) return -1;
    return 1;
}


function addEvent(elm, evType, fn, useCapture)
// addEvent and removeEvent
// cross-browser event handling for IE5+,  NS6 and Mozilla
// By Scott Andrew
{
  if (elm.addEventListener){
    elm.addEventListener(evType, fn, useCapture);
    return true;
  } else if (elm.attachEvent){
    var r = elm.attachEvent("on"+evType, fn);
    return r;
  } else {
    alert("Handler could not be removed");
  }
}