function getElm(id) {
	if (document.getElementById) {
		return document.getElementById(id);
	} else if (document.all) {
		return document.all[id];
	}
	return null;
}
function setElmStyle(id,style,val) {
	var elm=getElm(id);
	elm.style[style] = val;
}

function showFilterStage(stage) {
	setElmStyle("filterstage"+stage,'display',"table-row");
	setElmStyle("fadd"+stage,'display',(stage<5) ? "inline" : "none");
	setElmStyle("fremove"+stage,'display','inline');
	for (i=0; i<stage; i++) {
		setElmStyle("fadd"+i,'display',"none");
		setElmStyle("fremove"+i,'display','none');
	}
	setElmStyle("filterstage","display","none");
	setElmStyle("filterglobal","display","table-row");
	document.filter['filter[anz]'].value = stage+1;
}
function hideFilterStage(stage) {
	setElmStyle("filterstage"+stage,"display","none");
	if (stage>0) showFilterStage(stage-1);
	else {
		setElmStyle("filterstage","display","inline");
		setElmStyle("filterglobal","display","none");
	}
	document.filter['filter[anz]'].value = stage;
}

function showAndHideElms(idList,showtype) {
	var i;
	for (i=0; i<idList.length; i++) {
		elm = getElm(idList[i]);
		if (i==0)
			elm.style.display = showtype; // z.B. "block"
		else
			elm.style.display = "none";
	}
	hideHelpTip();
}

function selectItem(formObj,indexValue) {
	var i;
	if (!formObj) return;
	for (i=0; i<formObj.length; i++)
		if (formObj.options[i].value == indexValue)
			formObj.selectedIndex = i;
}

function setTimerFields(fieldname,formname,what,item) {
	var formObj = document[formname];
	var d;
	switch(what) {
		case 'now':
			d = new Date();
			break;
		case 'forever':
			// 2037.12.31 23:59:59
			d = new Date(2037,12-1,31, 23,59,59);
			break;
	}
	var str = "";
	if (item == 'date' || item == 'datetime') {
		str += d.getDate()+"."+(d.getMonth()+1)+"."+d.getFullYear();
		selectItem(formObj[fieldname+"[Date_Day]"],d.getDate());
		selectItem(formObj[fieldname+"[Date_Month]"],d.getMonth()+1);
		selectItem(formObj[fieldname+"[Date_Year]"],d.getFullYear());
	}
	if (item == 'datetime') str += " ";
	if (item == 'time' || item == 'datetime') {
		str += d.getHours()+":"+d.getMinutes()+":"+d.getSeconds();
		selectItem(formObj[fieldname+"[Time_Hour]"],d.getHours());
		selectItem(formObj[fieldname+"[Time_Minute]"],d.getMinutes());
		selectItem(formObj[fieldname+"[Time_Second]"],d.getSeconds());
	}
	//alert ("str = "+str);
	formObj[fieldname+"[timestring]"].value = str;
}

// helptips

var tipIvId = false;
var tipElm = null;
var tipWidth = 0;
var tipHeight = 0;
var tipX = 0, tipY = 0;
var tipBlending = 0;
var tipShowDelay = 10; // frames
var tipShowCounter = 0;

function placeHelpTip() {
	var x = Math.floor(tipX) + 20;
	var y = Math.floor(tipY) + 10;
	if (!document.all) {
		tipElm.style.left = x;
		tipElm.style.top = y;
		if (tipBlending>=0) {
			setOpacity(tipElm,tipBlending);
			tipBlending-=10;
			if (tipBlending<=0) tipElm.visibility="hidden";
		}
	} else {
		tipElm.style.pixelLeft = x;
		tipElm.style.pixelTop = y;
	}
	if (tipShowCounter < tipShowDelay) {
		tipShowCounter++;
	} else {
		tipElm.style.visibility = "visible";
	}
}

function moveHelpTip() {
	var xTo = xMousePos;
	var yTo = yMousePos;
	tipX += (xTo-tipX)*0.2;
	tipY += (yTo-tipY)*0.2;
	placeHelpTip();
}

function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  obj.style.filter = "alpha(opacity:"+opacity+")";
  obj.style.KHTMLOpacity = opacity/100;
  obj.style.MozOpacity = opacity/100;
  obj.style.opacity = opacity/100;
}

function showHelpTip(helpId) {
	if (tipIvId) clearInterval(tipIvId);
	if (tipElm) tipElm.style.visibility = "hidden";
	tipElm = getElm(helpId);
	if (tipElm) {
		tipWidth = (document.all) ? tipElm.style.pixelWidth : tipElm.style.offsetWidth;
		//tipHeight = (document.all) ? tipElm.style.pixelHeight : tipElm.style.offsetHeight;
		tipIvId = setInterval("moveHelpTip();",30);
		tipX = xMousePos;
		tipY = yMousePos;
		tipBlending = 0;
		placeHelpTip();
		setOpacity(tipElm, 100);
	}
}

function hideHelpTip() {
	tipShowCounter = 0;
	if (tipElm) {
		if (document.all) {
			tipElm.style.visibility = "hidden";
			if (tipIvId) clearInterval(tipIvId);
		} else if (document.getElementById) {
			tipBlending = 100;
		}
	}
}

// Mouse position
var IE = document.all ? true:false
if (!IE) {
	document.captureEvents(Event.MOUSEMOVE)
	document.captureEvents(Event.MOUSEUP)
	document.captureEvents(Event.MOUSEDOWN)
}
document.onmousemove = getMouseXY;
document.onmouseup = stopDrag;
document.onmousedown = startDrag;

var xMousePos = 0
var yMousePos = 0

var xDragOff = 0;
var yDragOff = 0;
var dragging = false;

function startDrag(e) {
	xDragOff = xMousePos;
	yDragOff = yMousePos;
	dragging = true;
}

function stopDrag(e) {
	dragging = false;
}

function getMouseXY(e) {
  if (IE) {
	xMousePos = event.clientX + document.body.scrollLeft
	yMousePos = event.clientY + document.body.scrollTop
  } else {
	xMousePos = e.pageX
	yMousePos = e.pageY
  }
  if (xMousePos < 0){xMousePos = 0}
  if (yMousePos < 0){yMousePos = 0}
  //window.status = xMousePos+","+yMousePos+" dragging="+dragging;
  if (dragging) return false;
  return true
}

function checkTotal() {
	var formObj = document.f;
	for (n in formObj) {
		if (n.substr(0,3)=="dub") formObj[n].checked = true;
	}
}

function checkAll(dubnr) {
	var toSearch = "dub"+dubnr+"i";
	var tsLen = toSearch.length;
	var obj = document.f;
	var n;
	for (n in obj) {
		if (n.substr(0,tsLen)==toSearch) {
			obj[n].checked = true;
		}
	}
}