function ShowLabBlock() {
if (document.all) {
	document.all.labblock.style.display='block';
} 
else if (document.getElementById) {
	document.getElementById("labblock").style.display='block';
}
}
function HideLabBlock() {
if (document.all) {
	document.all.labblock.style.display='none';
} 
else if (document.getElementById) {
	document.getElementById("labblock").style.display='none';
}
}