/**************************************************************************
 * Omni Object Functions
 **************************************************************************/
/**
  * Checks if an object with given name exists in form
  */
function Omni_Object_existsInForm(form, name) {
    // alert("Testing whether object [" + name + "] exists in form [" + form.name + "]");
    for (var i = 0; i < form.elements.length; ++i) {
		if (form.elements[i].name == name) {
        	// alert("Object " + name + " exists");
	        return true;
		}
	}
    // alert("Object does not exist");
    return false;
}

/**************************************************************************
 * Omni Form Functions
 **************************************************************************/
/**
  * Submits the given action for the given form
  */
function Omni_Form_submitAction(form, action) {
	form.action=action;
    form.submit();
}

/**************************************************************************
 * Omni Check Box List Functions
 **************************************************************************/
function Omni_CheckAll(checkname, exby) {
	for (i = 0; i < checkname.length; i++) checkname[i].checked = exby.checked;
}

function Omni_CheckBoxList_checkAll(list) {
	if (list[0].checked) {
    	// alert("Omni CheckBoxList Check All True");
		for (i = 1; i < list.length; i++) {
			list[i].checked = true;
        }
        // Select first list value if none selected yet
        if (list[0].value == "") {
			if (list.length > 1) {
				list[0].value = list[1].value;
			}
		}
	} else {
        // alert("Omni CheckBoxList Check All False");
        Omni_CheckBoxList_clear(list);
	}
}

function Omni_CheckBoxList_clear(list) {
	// alert("Omni CheckBoxList Clear");
	for (i = 0; i < list.length; i++) {
		list[i].checked = false;
	}
	// Clear selected value
	list[0].value = "";
}

function Omni_CheckBoxList_checkOne(list) {
	// alert("Omni CheckBoxList Check One");
	// Uncheck "all" option
	list[0].checked = false;
	// Uncheck those that don't match selection
	for (i = 1; i < list.length; i++) {
		if (list[i].value != list[0].value) {
			list[i].checked = false;
		}
	}
}

function Omni_CheckBoxList_onClick(list, newSelection) {
	// alert("Omni CheckBoxList On Click");
	if (newSelection.checked) {
		// Save selection only if none made yet
		if (list[0].value == "") {
			list[0].value = newSelection.value;
		}
	} else {
		// If saved selection was this one
		if (list[0].value == newSelection.value) {
			var found = false;
			// Set selection to first checked item other than this
			for (i = 1; i < list.length && !found; i++) {
				if (list[i].checked) {
					if (list[i].value != item.value) {
						list[0].value = list[i].value;
						found = true;
					}
				}
			}
			// If we didn't find a checked value
			if (!found) {
				// Set selection to none
				list[0].value = "";
			}
		}
	}
	// alert("Omni CheckBoxList new selection: " + selection.value);
}

function Omni_CheckBoxList_validateCheckOneOrMore(list) {
	// alert("Omni CheckBoxList Validate Check One Or More");
	// alert("Performing validate check one or more on " + list.name);
	return (list[0].value != "");
}

function Omni_SelectSubmit(aform) {
	aform.submit();
}

function Omni_popup(mylink, windowname) {
	if (! window.focus)return true;
    var href;
    if (typeof(mylink) == 'string')
        href=mylink;
    else
        href=mylink.href;
	window.open(href, windowname, 'width=800,height=600,scrollbars=yes,resizable=yes');
    return false;
}

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);
        }
    }
    alternateRowColors();
}

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];
        if (cell.className != "nosorting") {
        	var txt = ts_getInnerText(cell);
        	cell.innerHTML = '<a href="#" style="color: black; " 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;
	alternateRowColors();
}

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");
	}
}

function origAlternateRowColors() {
	var className = 'sortable';
	var rowcolor = '#dddddd';
	var defaultrowcolor = '#ffffff';
	var rows, arow;
	var tables = document.getElementsByTagName("table");
	var rowCount = 0;
	for(var i=0;i<tables.length;i++) {
		//dump(tables.item(i).className + " " + tables.item(i).nodeName + "\n");
		if(tables.item(i).className == className) {
			atable = tables.item(i);
			rows = atable.getElementsByTagName("tr");
			for(var j=0;j<rows.length;j++) {
				arow = rows.item(j);
				if(arow.nodeName == "TR") {
					if(rowCount % 2) {
						arow.style.backgroundColor = rowcolor;
					} else {
						// default case
						arow.style.backgroundColor = defaultrowcolor;
					}
					rowCount++;
				}
			}
			rowCount = 0;
		}
	}
}

function alternateRowColors() {
	var className = 'sortable';
	var rows, arow;
	var tables = document.getElementsByTagName("table");
	var rowCount = 0;
	for(var i=0;i<tables.length;i++) {
		//dump(tables.item(i).className + " " + tables.item(i).nodeName + "\n");
		if(tables.item(i).className == className) {
			atable = tables.item(i);
			rows = atable.getElementsByTagName("tr");
			for(var j=1;j<rows.length;j++) {
				arow = rows.item(j);
                if(arow.nodeName == "TR") {
					if(rowCount % 2) {
                        arow.setAttribute('class', 'portlet-section-alternate');
                    } else {
                        // default case
                        arow.setAttribute('class', 'portlet-section-body');
					}
                    rowCount++;
				}
			}
			rowCount = 0;
		}
	}
}

function limitText(limitField, limitCount, limitNum) {
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
	} else {
		limitCount.value = limitNum - limitField.value.length;
	}
}