var old_color, old_color2;

function dropLine(btn,tip){
	if(document.getElementById) {
		tr = btn;
		while (tr.tagName != 'DIV') tr = tr.parentNode;
		tr.parentNode.removeChild(tr);
		checkForLastLine(tip);
	}	
}
function addLine(btn,tip){
	if(document.getElementById) {
		tr = btn;
		while (tr.tagName != 'DIV') tr = tr.parentNode;
		var idSuffix = Math.round(Math.random()*1000);
		var newTr = tr.parentNode.insertBefore(tr.cloneNode(true),tr.nextSibling);
		checkForLastLine(tip);
	}	
}
function checkForLastLine(tip){
	btns = document.getElementsByName('drop'+tip);
	for (i = 0; i < btns.length; i++){
		btns[i].disabled = (btns.length == 1) ? true : false;
	}
}

function pow_fields_disable(f,s) {
	var obj2=document.getElementById('pow_content');
	inps = obj2.getElementsByTagName(f);
	for (i = 0; i < inps.length; i++)	inps[i].disabled = s;
}

function pow_showhide(ischecked){
	var obj1=document.getElementById('pow_title');
	var obj2=document.getElementById('pow_content');
	if (ischecked) {
		if (obj1) obj1.style.color='#999';
		if (obj2) { 
				obj2.style.color='#999';
				pow_fields_disable('INPUT',true);
				pow_fields_disable('SELECT',true);
				pow_fields_disable('TEXTAREA',true);
				spans = obj2.getElementsByTagName('SPAN');
				for (i = 0; i < spans.length; i++) {
					spans[i].style.backgroundColor = '#F2F2F2';
					spans[i].style.borderColor = '#DDD';
					}
				}
		} else {
		if (obj1) obj1.style.color='';
		if (obj2) { 
				obj2.style.color='';
				pow_fields_disable('INPUT',false);
				pow_fields_disable('SELECT',false);
				pow_fields_disable('TEXTAREA',false);
				spans = obj2.getElementsByTagName('SPAN');
				for (i = 0; i < spans.length; i++)	{
					spans[i].style.backgroundColor = '#FFF2DC';
					spans[i].style.borderColor = '#AAAAAA';
					}
				}
		}
}


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}