function show(elemID)
{
	var elem=document.getElementById(elemID);
	elem.style.position='relative';
	elem.style.visibility='visible';
}
function hide(elemID)
{
	var elem=document.getElementById(elemID);
	elem.style.position='absolute'
	elem.style.visibility='hidden';
}
function hide_show(elemID)
{
	var elem=document.getElementById(elemID);
	if(elem.style.visibility=='hidden')
	{
		show(elemID);
	}
	else
	{
		hide(elemID);
	}
}

function prepareInputsForHints() {
	var inputs = document.getElementsByTagName("input");
	inputs[0]
	for (var i=0; i<inputs.length; i++){
		if (inputs[i].parentNode.getElementsByTagName("span")[0]) {
			inputs[i].onfocus = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
			}
			inputs[i].onblur = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "none";
			}
		}
	}
}