function el(id){
	return document.getElementById(id);	
}
// Toggles the visibility of element with id=name
// Note: you must initialize style:visibility & style:display
function toggleVis(name){
	if(document.getElementById(name)){
		if(document.getElementById(name).style.visibility == "visible"){
			document.getElementById(name).style.visibility = "hidden";
			document.getElementById(name).style.display = "none";
		}else if(document.getElementById(name).style.visibility == "hidden"){
			document.getElementById(name).style.visibility = "visible";
			document.getElementById(name).style.display = "block";
		}
		
	}
}
function specifyVis(name,visibility){
	if(document.getElementById(name)){
		if(visibility == "visible"){
			document.getElementById(name).style.visibility = "visible";
			document.getElementById(name).style.display = "block";
		}else if(visibility == "hidden"){
			document.getElementById(name).style.visibility = "hidden";
			document.getElementById(name).style.display = "none";
		}
		
	}
}

function checkAllCheckboxes(formId){
	for (var i=0;i<document.getElementById(formId).elements.length;i++) {
		var e = document.getElementById(formId).elements[i];
		if ((e.type=='checkbox') && (!e.disabled) ) {
			e.checked = true;
		}
	}
}

function uncheckAllCheckboxes(formId){
	for (var i=0;i<document.getElementById(formId).elements.length;i++) {
		var e = document.getElementById(formId).elements[i];
		if ((e.type=='checkbox') && (!e.disabled) ) {
			e.checked = false;
		}
	}
}
function checkAllBoxesInForm(form, checkboxField){
	for (i = 0; i < document.getElementById('transferForm').elements[checkboxField].length; i++){
		document.getElementById('transferForm').elements[checkboxField][i].checked = true;
	}
}

function uncheckAllBoxesInForm(form, checkboxField){
	for (i = 0; i < document.getElementById('transferForm').elements[checkboxField].length; i++){
		document.getElementById('transferForm').elements[checkboxField][i].checked = false;
	}
}