function GroupClicked(chkbox) {
    var bCheck = chkbox.checked;
    for (var i=0; i<document.forms[0].elements.length; i++) {
        var elem = document.forms[0].elements[i];
        if (elem.tagName == 'INPUT' && elem.type == 'checkbox') {
            if (elem.name.substr(0, chkbox.name.length).indexOf(chkbox.name) == 0) {
                if (chkbox != elem && !elem.disabled) {
                    if (elem.checked != bCheck) {elem.click(); }
                }
            }
        }
    }
    return false;
}

function DeselectRestOfGroup(id, chkbox) {
    for (var i=0; i<document.forms[0].elements.length; i++) {
        var elem = document.forms[0].elements[i];
        if (elem.tagName == 'INPUT' && elem.type == 'checkbox') {
            if (elem.id.indexOf(id) == 0) {
                if (chkbox != elem && !elem.disabled) {
                    if (elem.checked == true) {
                        elem.checked = false;
                        SelectRow(elem, elem.parentNode.parentNode.id); 
                    }
                }
            }
        }
    }
    return false;
}

function SelectRow(chkbox, rowID) {
    var bCheck = chkbox.checked;
    var oRow = document.getElementById(rowID);
    if (oRow == null) return false;
    if (bCheck) {oRow.style.backgroundColor = '#DDDDDD';} 
    else {oRow.style.backgroundColor = '#F3F3F3';}
}

function SelectRowGroup(chkbox, rowID, colSpan) {
    var bCheck = chkbox.checked;
    for (var i=0; i<colSpan; i++) {
        var oRow = document.getElementById(rowID + '_' + i);
        if (oRow == null) return false;
        if (bCheck) {oRow.style.backgroundColor = '#DDDDDD';} 
        else {oRow.style.backgroundColor = '#F3F3F3';}
    }
}

function ExtDataGridCmd(chkboxname, url) {
    url += '&elements=';
    for (var i=0; i<document.forms[0].elements.length; i++) {
        var elem = document.forms[0].elements[i];
        if (elem.tagName == 'INPUT' && elem.type == 'checkbox' && elem.name.substr(0, chkboxname.length).match(chkboxname)) {
            if (elem.checked) {  
                if (elem.value != 'all') {              
                    url += elem.value;
                    url += '+';
                    //elem.click();
                } else {
                    //elem.checked = false;
                }
            }
        }
    }     
    window.open(url.substring(0, url.length - 1),'Action','toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=400,height=200'); 
    
    document.forms[0].submit();
}

function ExtFilterTableUnselect(filtername) {
    for (var i=0; i<document.forms[0].elements.length; i++) {
        var elem = document.forms[0].elements[i];
        if (elem.tagName == 'INPUT' && elem.type == 'checkbox' && elem.id.substr(0, filtername.length).match(filtername)) {
            if (elem.checked) {
                elem.checked = false;
            } else {
            }
        }        
    }
}

function ExtFilterCheck(filtername) {
  if (document.getElementById(filtername + "_any").checked == true) {
    document.getElementById(filtername + "_set").checked = true;
  }
}

function CombTableDeactivateOpposite(chkelem) {
    if (chkelem.checked) {
        if (chkelem.id.indexOf('_include') > 0) {
            var opp1 = document.getElementById(chkelem.id.replace('_include','_exclude'));
            if (opp1 != null) {
                opp1.checked = false;
            }
        } else {
            var opp2 = document.getElementById(chkelem.id.replace('_exclude','_include'));
            if (opp2 != null) {
                opp2.checked = false;
            }
        }                
    }    
}

var AmazonImagesToLoad = new Array();

function loadAmazonImages(){
   var noImages = AmazonImagesToLoad.length;
   var groupSize = 20;
   var groupDelay = 2000;
   var delay = -groupDelay;
   for(var i=0; i<noImages; i++){
      if(i%groupSize == 0){
         delay += groupDelay;
      }
      var noticeid = AmazonImagesToLoad[i];
      setTimeout('getAmazonImgUrl('+noticeid+', true)', delay);
   }
}

function getAmazonImgUrl(noticeId, shortView) {
    var req = null;
    
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest(); // Mozilla, Safari, Opera
    } else if (window.ActiveXObject) {
		try {
			req = new ActiveXObject('Msxml2.XMLHTTP'); // IE 5
		} catch (e) {
			try {
				req = new ActiveXObject('Microsoft.XMLHTTP'); // IE 6
			} catch (e) {}
		}
	}
	
	if (shortView) {
      req.open("GET", 'AmazonImage.ashx?id=' + noticeId + '&small=yes' , true);
	} else {
      req.open("GET", 'AmazonImage.ashx?id=' + noticeId , true);
	}
    
	req.onreadystatechange = function() {
		switch(req.readyState) {
			case 4:
				if(req.status == 200) {
				    if (req.responseText.length > 0){
				        var exception = 'Exception: ';
				        var ex = false;
				        
				        if (req.responseText.substr(0, exception.length) === exception)  {
				            ex = true;
                    }
                        
				        if (shortView) {
				            if (!ex) {
                           var img = $('#amazonimg'+noticeId);
                        }
				        } else {
				            if (ex) {
				               var err = $('#amazonerr');
				            } else {
				               var img = $('#amazonimg');;
				            }
                    }
                        
                    if (ex) {
                        if(!shortView){
                           err.show();
				               err.text(req.responseText);
				            }
				        }else{
                        img.attr('src', req.responseText);
			               img.css('width', '');
			               img.css('height', '');
			           }
				    }
				}
				break;

			default:
				return false;
				break;				
			}
		};
    req.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
    req.send(null);
}

function monitorSessionExpiry(time, parms){
    setTimeout("redirectAfterExpiry('" + parms + "')", time);
}

function redirectAfterExpiry(parms){
    window.location = "SessionEnd.aspx" + parms;
}

function keepAliveSession(time){
    setTimeout('redirectAfterKeepAlive()', time);
}

function redirectAfterKeepAlive(){
    window.location = window.location;
}

function showHolidays(){
    win1 = window.open("holidayPeriods.aspx", "Information", "width=600,height=400,status=yes,scrollbars=yes,resizable=yes");
    win1.focus();
}

function fnTrapKD(event, btnId){
   if (event.keyCode == 13)
   { 
     var btn = document.getElementById(btnId);
     event.returnValue=false;
     event.cancel = true;
     btn.click();
   } 
}


// PopupWindow
function popup_display(id){
    id = '#' + id;
    var pu = $(id);
    pu.show('slow');
    
    
    // hide button
    $(id + ' .popup_close').click(function(e){
        pu.hide();
        return false;
    });
    
    // automatically hide after 5 secs
    setTimeout(function(){
        pu.hide();
    }, 5000);
}

// Folded MARC Datafields
function prepareFoldDiv(id){
    id = '#' + id;
    
    $(id + ' .btnShow').click(function(){
        $(id + ' .content').show();
        $(id + ' .btnShow').hide();
        return false;
    });
}