/*=================================================================
Function: ShowTooltip
Purpose:  position, draw, and display tooltip element
Input:    fArg - indexes text array to display
Returns:  undefined
==================================================================*/
function ShowTooltip(what)
	{
		var tooltipOBJ = eval("document.all."+what);
		var tooltipOffsetTop = tooltipOBJ.scrollHeight + 20;
		var testTop = (document.body.scrollTop + event.clientY) - tooltipOffsetTop;
		var testLeft = event.clientX + 10;
		var tooltipAbsLft = (testLeft < 0) ? 10 : testLeft;
		var tooltipAbsTop = (testTop < document.body.scrollTop) ? document.body.scrollTop + 10 : testTop;
		tooltipOBJ.style.posLeft = tooltipAbsLft;
		tooltipOBJ.style.posTop = tooltipAbsTop;
		tooltipOBJ.style.visibility = "visible";
	}

/*=================================================================
Function: HideTooltip
Purpose:  set visibility attribute of tooltip to hidden
Input:    none
Returns:  undefined
==================================================================*/
function HideTooltip(what)
	{
		var tooltipOBJ = eval("document.all."+what);
		tooltipOBJ.style.visibility = "hidden";
	}