//show/hide block
function sarToggle(idname) {
	document.getElementById(idname).style.display = (document.getElementById(idname).style.display == 'none') ? 'block' : 'none';
}

//hide block
function sarHide(idname) {
	document.getElementById(idname).style.display = 'none';
}

//show block
function sarShow(idname) {
	document.getElementById(idname).style.display = 'block';
}

//show/hide table row
function sarToggleRow(idname) {
	document.getElementById(idname).style.display = (document.getElementById(idname).style.display == 'none') ? 'table-row' : 'none';
}

//show table row
function sarShowRow(idname) {
	document.getElementById(idname).style.display = 'table-row';
}

//show inline
function sarShowInline(idname) {
	document.getElementById(idname).style.display = 'inline';
}

function sarValidateEmail(email) {
	var atpos=email.indexOf("@");
	var dotpos=email.lastIndexOf(".");
	if (atpos<1 || dotpos<atpos+2 || dotpos+2>=email.length) {
		return false;
	} else {
		return true;
	}
}