function checkAll() {
for (var j = 2; j <= 9; j++) {
box = eval("document.getoptions.Op" + j); 
if (box.checked == false) box.checked = true;
   }
}

function uncheckAll() {
for (var j = 2; j <= 9; j++) {
box = eval("document.getoptions.Op" + j); 
if (box.checked == true) box.checked = false;
   }
}

function validateForm() {
if ( 
     !document.getoptions.Op2.checked && 
	 !document.getoptions.Op3.checked &&
	 !document.getoptions.Op4.checked &&
	 !document.getoptions.Op5.checked &&
	 !document.getoptions.Op6.checked &&
	 !document.getoptions.Op7.checked &&
	 !document.getoptions.Op8.checked &&
	 !document.getoptions.Op9.checked ) 
	{
 	alert("Please select at least one option."); 
	return false;
	}
}
function load()
{
	document.getElementById("divWagesTable").style.display = ''
	document.getElementById("divAnnualWages").style.display = 'none';
	document.getElementById("divHourlyWages").style.display = 'none';
}

function showChart(chart)  {
if (chart == "Hourly") {
	document.getElementById("divWagesTable").style.display = 'none'
	document.getElementById("divAnnualWages").style.display = 'none';
	document.getElementById("divHourlyWages").style.display = '';
	}
else if (chart == "Annual")  {
	document.getElementById("divWagesTable").style.display = 'none'
	document.getElementById("divAnnualWages").style.display = '';
	document.getElementById("divHourlyWages").style.display = 'none';
	}
else  {
	document.getElementById("divWagesTable").style.display = ''
	document.getElementById("divAnnualWages").style.display = 'none';
	document.getElementById("divHourlyWages").style.display = 'none';
	}
}