// Clears input fields
function doClear()
{
for (i = 0; i < document.forms[0].elements.length; i++)
{
	fieldName = document.forms[0].elements[i].name;

	if (fieldName.substring(0,3) == "opt")
	{ 
		document.forms[0].elements[i].selectedIndex = 0;
	}
	else 
	{
		document.forms[0].elements[i].value = "";
	} 
}
}

// Removes leading and trailing spaces
function trim(s) 
{
  var p=0, a=0, b=0
  s += ""
  while (p < s.length && s.charAt(p) == " ")
    p++
  a = p

  if (a == s.length)
    return ""

  p = s.length - 1
  while (p >= a && s.charAt(p) == " ")
    p--
  b = p + 1

  return s.substring(a, b)
}

//Mouse over functions
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];}
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0

	if (selObj.options[selObj.selectedIndex].value != ""){
	//alert (selObj.options[selObj.selectedIndex].value)

		eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
		if (restore) selObj.selectedIndex=0;
	}
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function popWindow(urrl){
	window.open(urrl,"editwindow",'width=420,height=560,resizable=0,scrollbars=yes');
}
function popWindow2(urrl){
	window.open(urrl,"imagewindow",'width=620,height=600,resizable=0,scrollbars=yes');
}
//Used for prompting user to confirm some operations
function doConfirm(action)
{
	var sel;
			
	switch (action)
		{
		case "user": 
			sel = "Är du säker på att vill ta bort användaren?"
			break;
		case "news": 
			sel = "Är du säker på att du vill ta bort nyheten?"
			break;
		case "link": 
			sel = "Är du säker på att du vill ta bort länken?"
			break;
		case "program": 
			sel = "Är du säker på att du vill ta bort programpunkten?"
			break;
		case "foto": 
			sel = "Är du säker på att du vill ta bort bilddokumentet?"
			break;
		case "forum": 
			sel = "Är du säker på att du vill ta bort trädet?"
			break;

		}
			
	var agree = confirm(sel);
			
	if (agree)
		return true ;
	else
		return false ;
}