function trim(chars) {
 while(chars.charAt(0)==' ') {
   chars=chars.substring(1);
 }
 while(chars.charAt(chars.length - 1)==' ') {
   chars=chars.substring(0,chars.length - 1);
 }
 return chars;
}

function setFocus(field) {
	if (field.focus) {
		field.focus(); 
	}
	if (field.select) {
		field.select();
	}
}

function getElement(elemID) {
  var obj
  if (document.all) {
    obj = document.all(elemID);
  } else if (document.getElementById) {
    obj = document.getElementById(elemID);
  } else if (document.layers) {
    obj = document.layers[elemID];
  }
  return obj;
}

function selectAdd(select, option, position) {
  if (isIE()) {
    select.options.add(option, position);
  } else {
    select.add(option, select.options[position]);
  }
}

function isIE() {
  return (navigator.appName == "Microsoft Internet Explorer");
}

function submitForm(form, url) {
	form.action=url;
	form.submit();
}

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_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_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];
		}
}