var viewSelectedForm='viewSelectedForm'

function openLesson(UNID){

var parentfield=eval('document.forms['+viewSelectedForm+'].dispSelectedOptions');
var parentfieldlength=0
var n=0

			parentfieldlength=parentfieldlength+1
			parentfield.length=parentfieldlength

			parentfield.options[n].text=UNID
			parentfield.options[n].value=UNID
			parentfield.options[n].selected=true

			document.forms[0].submit()
}

//For getting lesson detail
function getAllSelected(){

var thisform=document.forms[viewSelectedForm]

var parentfield=eval('document.forms['+viewSelectedForm+'].dispSelectedOptions');
var parentfieldlength=0
var n=0

	parentfield.length = 0;
	for (var i=0; i<thisform.elements.length;i++){

		if(thisform.elements[i].type=='checkbox'&&thisform.elements[i].checked){
			if(!alreadySelected(thisform.elements[i].value)){
				parentfieldlength=parentfieldlength+1
				parentfield.length=parentfieldlength
				parentfield.options[n].text=thisform.elements[i].name
				parentfield.options[n].value=thisform.elements[i].value	
				parentfield.options[n].selected=true
				n=n+1
			}
		}
	}
	
	if (n==0){
		alert("Please select at least one lesson.")	
		}
	else{
		document.forms[viewSelectedForm].submit()
	}

}
//called from getAllSelected
function alreadySelected(UNID){

var thisform=document.forms[0]
var parentfield=eval('document.forms['+viewSelectedForm+'].dispSelectedOptions');
var already=false

	for(var i=0;i<parentfield.length;i++){
		if (parentfield.options[i].value==UNID){already=true;break}	
	}
return already
}

//called in PrintLessonDetail form to get IDs of lessons to print
function getLessonIDsFromOpener(){

var parentfield=eval('document.forms['+viewSelectedForm+'].dispSelectedOptions');
var parentfieldlength=0
var n=0

var openerform=eval('window.opener.document.forms['+viewSelectedForm+']')
var openerfield=eval('window.opener.document.forms['+viewSelectedForm+'].dispSelectedOptions');
var openerfieldlength=openerfield.length

	parentfield.length = 0;

	for (var i=0; i<openerfieldlength;i++){
		parentfieldlength=parentfieldlength+1
		parentfield.length=parentfieldlength
		parentfield.options[n].text=openerfield[n].value
		parentfield.options[n].value=openerfield[n].value
		parentfield.options[n].selected=true
		n=n+1
	}
	
}

//used in onclick event of input fields for Lesson Title Output for Category and App Areas
	//since lesson can be listed in multiple categories, this checks/unchecks all lessons for the UNID
function checkAll(active, UNID){
var thisform=document.forms[viewSelectedForm]
	for (var i=0; i<thisform.elements.length;i++){

		if(thisform.elements[i].type=='checkbox'&&thisform.elements[i].value==UNID){
			thisform.elements[i].checked=active
		}
	}
}