var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menub ar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}


// JavaScript Document
// Example: obj = findObj("image1");
function findObj(theObj, theDoc)
{
  var p, i, foundObj;
  
  if(!theDoc) theDoc = document;
  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)
  {
    theDoc = parent.frames[theObj.substring(p+1)].document;
    theObj = theObj.substring(0,p);
  }
  if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];
  for (i=0; !foundObj && i < theDoc.forms.length; i++) 
    foundObj = theDoc.forms[i][theObj];
  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) 
    foundObj = findObj(theObj,theDoc.layers[i].document);
  if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj);
  
  return foundObj;
}

// * Dependencies * 
// this function requires the following snippet:
// JavaScript/readable_MM_functions/findObj
function setColor(objName, fg, bg)
{
  obj = findObj(objName);
  if (obj.style)
  {
    obj.style.color = fg;
    obj.style.backgroundColor = bg;
  }
}


function reportError(field) {
	var object = findObj(field+"Row");
	object.style.background = '#FFC4C4';
}

function fixError(field) {
	var object = findObj(field+"Row");
	object.style.background = '#FFFFFF';
}

function checkForm() {
	if(document.form1.name.value=="") {
		reportError("name");
		return false;
	} else { fixError("name"); }
	if(document.form1.institution.value=="") {
		reportError("institution");
		return false;
	} else { fixError("institution"); }
	/*if(document.form1.comments.value=="") {
		reportError("comments");
		return false;
	} else { fixError("comments"); }*/
	document.form1.Submit.disabled = true;
	return true;
}

function setVisible(value, id) {
	var object = findObj(id);
	object.style.display = value;
}