/* copyright tranquil marine 

www.tranquilmarine.com.au
*/
function tmsvolcalc()
{
	var tanklen = $('#length');
	var tankwid = $('#width');
	var tankhei = $('#height');
	var tankvol = $('#volume');
	
	if (tanklen.length > 0
		&& tankwid.length > 0
		&& tankhei.length > 0
		&& tankvol.length > 0)
	{
		if (tanklen.val().length == 0
			|| tankwid.val().length == 0
			|| tankhei.val().length == 0)
		{
			tankvol.val("Need length, heigh and width");
			return false;
		}
		
		if (tanklen.val() != parseFloat(tanklen.val()))
		{
			tankvol.val("Length - Numbers Only Please");	
			return false;
		}
		if (tankwid.val() != parseFloat(tankwid.val()))
		{
			tankvol.val("Width - Numbers Only Please");	
			return false;
		}
		if (tankhei.val() != parseFloat(tankhei.val()))
		{
			tankvol.val("Height - Numbers Only Please");	
			return false;
		}
		
		var w = parseFloat(tankwid.val());
		var h = parseFloat(tankhei.val());
		var l = parseFloat(tanklen.val());
		
		var tot = w * h * l / 1000;
		
		tankvol.val(tot.toString() + " Litres");
		
	}


}

function tmsftcm()
{
	var ft = $('#feet');
	var cm = $('#centimeters');
	
	if (ft.length > 0
		&& cm.length > 0)
	{
		if (ft.val().length == 0)
		{
			cm.value("Need Feet");
			return false;
		}
		
		if (ft.val() != parseFloat(ft.val()))
		{
			cm.val("Numbers Only Please");	
			return false;
		}
		
		var f = parseFloat(ft.val());
		
		cm.val(f * 30.48);
		
	}

}