function js_idealweightcal_validate()
{  
	if(document.frm_cal.type[0].checked==false && document.frm_cal.type[1].checked==false)
	{
		alert(document.frm_cal.msg_unit_height.value);
		return false;
	}
	if(document.frm_cal.type[0].checked==true)
	{
		if(document.frm_cal.feet.value == 4 && document.frm_cal.inch.value < 11)
		{
			alert(document.frm_cal.msg_valid_height.value);
			return false;
		}
	}
	if(document.frm_cal.type[1].checked==true)
	{
		if(document.frm_cal.centimeter.value=="")
		{
			alert(document.frm_cal.msg_enter_height.value);
			return false;
		}
		
		if(!js_idealweightcal_isInteger(document.frm_cal.centimeter.value))
		{
			alert(document.frm_cal.msg_proper_height.value);
			return false; 
		}
		if(document.frm_cal.centimeter.value < 147)
		{
			alert(document.frm_cal.msg_valid_height.value);
			return false; 
		}
	}
	document.frm_cal.submit();
}

function js_idealweightcal_isInteger(s)
{
	var i;
	s = s.toString();
	for (i = 0; i < s.length; i++)
	{
		var c = s.charAt(i);
		if (isNaN(c)) 
		{
			return false;
		}
	}
	return true;
}
function js_idealweightcal_hideshow()
{
	if(document.frm_cal.type[0].checked==true)
	{
		document.getElementById('cemidiv').style.display = "none";
		document.getElementById('feetdiv').style.display = "block";
	}

	if(document.frm_cal.type[1].checked==true)
	{
		document.getElementById('feetdiv').style.display = "none";
		document.getElementById('cemidiv').style.display = "block";
	}	
}