// JavaScript Document
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) { //v4.01
  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 && d.getElementById) x=d.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];}
}

function popup(url, name, w, h) {
	flashwin=window.open(url,name,'menubar=no,height='+h+',width='+w+',top='+((screen.height-h)/2)+',left='+((screen.width-w)/2)+',screenX='+((screen.width-w)/2)+',screenY='+((screen.height-h)/2)+',scrollbars=false,resizable=no,alwaysRaised=yes');
	flashwin.focus();
}

function popupsb(url, name, w, h) {
	flashwin=window.open(url,name,'menubar=no,height='+h+',width='+w+',top='+((screen.height-h)/2)+',left='+((screen.width-w)/2)+',screenX='+((screen.width-w)/2)+',screenY='+((screen.height-h)/2)+',scrollbars=1,resizable=no,alwaysRaised=yes');
	flashwin.focus();
}

Array.prototype.indexOfArray = function(val) {
	for(var i=0; i<this.length; i++) if(this[i]==val) return i;
};

var curr							= "";
var deletedItemsArr					= new Array();

var swapoptions						= function()
{
	var val							= document.getElementById("options").value;
	var table						= "tab"+val;
	if(curr == "" && val == "")
	{
		return;	
	}
	else if(curr != "")
	{
		if(val == "")
		{
			document.getElementById(curr).style.display = "none";
			curr					= "";
		}
		else
		{
			document.getElementById(curr).style.display = "none";
			document.getElementById(table).style.display = "block";
			curr						= table;
		}
	}
	else if(curr == "")
	{
		document.getElementById(table).style.display = "block";
		curr						= table;
	}
};

var checkSub						= function(f)
{
	if(f.artname.value == "")
	{
		alert("The Article Name field is required.");
		f.artname.focus();
		return false;
	}
	else if(f.artsrc.value == "")
	{
		alert("The source field is required.");
		f.artsrc.focus();
		return false;
	}
	else if(f.artmonth.value == "" || f.artday.value == "" || f.artyear.value == "")
	{
		alert("The date fields are required.");
		f.artmonth.focus();
		return false;
	}
	else if(f.artlink.value == "")
	{
		alert("The article link field is required.");
		f.artlink.focus();
		return false;
	}
	else
	{
		return true;
	} 
};
var checkarr						= function(str)
{
	(document.getElementById(str).checked == true) ?
		deletedItemsArr.push(str) :
		deletedItemsArr.splice(deletedItemsArr.indexOfArray(str), 1);
}

var checkdel						= function()
{
	if(deletedItemsArr.length == 0)
		return false;
	else if(confirm(deletedItemsArr.length+" article(s) will be deleted. Continue?"))
		return true;
	else return false;
};