function Calckit()
{
	document.form3.codegenerator.value = '';
	testpressure = document.form3.testpress.value*1;
	maxleakage = document.form3.leakage.value*1;
	fourkitcfm = 50 - testpressure;
	fivekitcfm = 401.294 - 29.25*(testpressure) - 0.01694*Math.exp(testpressure);
	sixkitcfm = 1259.1 - 41.8*(testpressure) - 0.14*Math.pow(testpressure,3);
	eightkitcfm = 1832.6 - 64.95*(testpressure) - 2.8*Math.pow(testpressure,2);
	
	if(maxleakage < 5)
	{
		document.form3.codegenerator.value = 'Need special low-leakage tube.  We can design one for you.';
	}
	else if (testpressure > 40)
	{
		document.form3.codegenerator.value = 'This is a high pressure and exceeds the limits of our standard product offering. Contact us to design a custom tube or kit.';
	}
	else if (maxleakage  <= fourkitcfm )
	{
		document.form3.codegenerator.value = 'Part number: LTK-4 includes 4-inch diameter orifice tube, a fan, two U-tube manometers, flexible duct, and pressure tubing.';
	}
	else if (maxleakage <= fivekitcfm)
	{
		document.form3.codegenerator.value = 'Part number: LTK-5 includes 5-inch diameter orifice tube, a fan, two U-tube manometers, flexible duct, and pressure tubing.';
	}
	else if (maxleakage <= sixkitcfm)
	{
		if(maxleakage < 150) 
			{
			document.form3.codegenerator.value = 'This condition exceeds the limits of our standard product offering. Contact us to design a custom tube or kit.';
			}
		else if(maxleakage>=150)
			{
			document.form3.codegenerator.value = 'Part number: LTK-6 includes 6-inch diameter orifice tube, a fan, two U-tube manometers, flexible duct, and pressure tubing.';
			}
	}
	else if (maxleakage <= eightkitcfm)
	{
		if(maxleakage < 250) 
			{
			document.form3.codegenerator.value = 'This condition exceeds the limits of our standard product offering. Contact us to design a custom tube or kit.';
			}
		else if(maxleakage>=250)
			{
			document.form3.codegenerator.value = 'Part number: LTK-8 includes 8-inch diameter orifice tube, a fan, two U-tube manometers, flexible duct, and pressure tubing.';
			}
	}
	else if (maxleakage > eightkitcfm)
	{
		document.form3.codegenerator.value = 'This condition exceeds the limits of our standard product offering. Contact us to design a custom tube or kit.';
	}
}

function CalcKit2()
{
	document.form4.codegenerator.value = '';
	var systempressure = document.form4.sysp.value;
	var ductclass = 1*document.form4.leakageclass.value;
	var surfacearea = 1*document.form4.surfarea.value;

	if(ductclass==0)
	{
		lclass=3;
	}
	if(ductclass==1)
	{
		lclass=6;
	}
	if(ductclass==2)
	{
		lclass=12;
	}
	if(ductclass==3)
	{
		lclass=24;
	}
	if(ductclass==4)
	{
		lclass=48;
	}

	var LeakFactor = (1*lclass)*Math.pow(systempressure,0.65);
	var cfmtomeasure = Math.round((LeakFactor/100)*surfacearea)
	document.form4.codegenerator.value = 'Allowable leakage is '+cfmtomeasure+' cfm'

	var fourkitcfm = 50 - systempressure;
	var fivekitcfm = 401.294 - 29.25*(systempressure) - 0.01694*Math.exp(systempressure);
	var sixkitcfm = 1259.1 - 41.8*(systempressure) - 0.14*Math.pow(systempressure,3);
	var eightkitcfm = 1832.6 - 64.95*(systempressure) - 2.8*Math.pow(systempressure,2);

	if(cfmtomeasure < 5)
	{
		document.form4.codegenerator2.value = 'Need special low-leak tube. We can design one for you.';
	}
	else if (systempressure > 15)
	{
		document.form4.codegenerator2.value = 'This is a high pressure and exceeds the limits of our standard product offering. Contact us to design a custom tube or kit.';
	}
	else if (cfmtomeasure <= fourkitcfm )
	{
		document.form4.codegenerator2.value = 'Part number: LTK-S includes 4-inch diameter orifice tube, a fan, two U-tube manometers, flex duct, and pressure tubing.';
	}
	else if (cfmtomeasure <= fivekitcfm)
	{
		document.form4.codegenerator2.value = 'Part number: LTK-L includes 5-inch diameter orifice tube, a fan, two U-tube manometers, flex duct, and pressure tubing.';
	}
	else if (cfmtomeasure <= sixkitcfm)
	{
		document.form4.codegenerator2.value = 'Part number: LTK-6 includes 6-inch diameter orifice tube, a fan, two U-tube manometers, flex duct, and pressure tubing.';
	}
	else if (cfmtomeasure <= eightkitcfm)
	{
		document.form4.codegenerator2.value = 'Part number: LTK-8 includes 8-inch diameter orifice tube, a fan, two U-tube manometers, flex duct, and pressure tubing.';
	}
	else if (cfmtomeasure > eightkitcfm)
	{
		document.form4.codegenerator2.value = 'This condition exceeds the limits of our standard product offering. Contact us to design a custom tube or kit.';
	}
} 
function CalcKit3()
{
    document.form5.codegenerator.value = '';
    var systempressure = document.form5.sysp.value;
    var inlineloss = document.form5.feetofflex.value * 0.1223 + document.form5.numbends.value * 0.600;
    
    var testpressure = (1 * systempressure + inlineloss);
    var customerkit=document.form5.mykit.value;
    
    var fourkitcfm = Math.round( 50 - testpressure );
    var fivekitcfm = Math.round(401.294 - 29.25 * (testpressure) - 0.01694 * Math.exp(testpressure));
    var sixkitcfm = Math.round(1259.1 - 41.8 * (testpressure) - 0.14 * Math.pow(testpressure,3));
    var eightkitcfm = Math.round(1832.6 - 64.95 * (testpressure) - 2.8 * Math.pow(testpressure,2));
    
    if(fourkitcfm<0)
    {
        fourkitcfm=0;
    }
    if(fivekitcfm<0)
    {
        fivekitcfm=0;
    }
    if(sixkitcfm<0)
    {
        sixkitcfm=0;
    }
    if(eightkitcfm<0)
    {
        eightkitcfm=0;
    }
    
    if(customerkit==0)
    {
        document.form5.codegenerator.value = 'Maximum leakage LTK-S can measure is '+fourkitcfm+' cfm at a test pressure of '+systempressure+' in.wg. and with an inline loss of '+inlineloss+' in.wg.';
    }
    else if(customerkit==1)
    {
        document.form5.codegenerator.value = 'Maximum leakage LTK-L can measure is '+fivekitcfm+' cfm at a test pressure of '+systempressure+' in.wg. and with an inline loss of '+inlineloss+' in.wg.';
    }
    else if(customerkit==2)
    {
        document.form5.codegenerator.value = 'Maximum leakage LTK-6 can measure is '+sixkitcfm+' cfm at a test pressure of '+systempressure+' in.wg. and with an inline loss of '+inlineloss+' in.wg.';
    }
    else if(customerkit==3)
    {
        document.form5.codegenerator.value = 'Maximum leakage LTK-8 can measure is '+eightkitcfm+' cfm at a test pressure of '+systempressure+' in.wg. and with an inline loss of '+inlineloss+' in.wg.';
    }
}