<!-- Begin
/*
    Feel free to use this gear calculator javascript on any Off-Road/4x4 site.
 	If you do use them I would appreciate a link back to my home page 
	http://www.4Lo.com from the calculator page with credit to Mark Medina.
	
	Copywrite 1997 by Mark Medina, Mark@4Lo.com.  Please leave this notice intact
	as well as the copywrite information located at the bottom of the calculators.

	Version 1.1, 8/1/97 - Compatible with Netscape 3.0x and MSIE 3.0 and above.
*/

var hold1;

var hold2;

function compute1(form)

{

if (form.tr.value<.01||form.tr.value>99.9)

{       form.tr.value=1.00;}

if (form.tc.value<.01||form.tc.value>99.9)

{       form.tc.value=1.00;}

if (form.ar.value<1.00||form.ar.value>9.99)

{       form.ar.value=0;}     

if (form.mp.value<1||form.mp.value>300)

{       form.mp.value=0;}

if (form.td.value<10||form.td.value>99)

{       form.td.value=0;}

form.rp.value = (form.mp.value * form.ar.value * form.tr.value * form.tc.value * 336) / form.td.value;

if (form.mp.value==0&form.ar.value==0&form.td.value==0)

{       form.rp.value="N/A";}

return;

}

function compute2(form)

{

if (form.nt.value<10||form.nt.value>99)

{       form.nt.value=0;}     

if (form.td.value<10||form.td.value>99)

{       form.td.value=0;}

if (form.ar.value<1.00||form.ar.value>9.99)

{       form.ar.value=0;}

form.na.value = (form.nt.value / form.td.value) * form.ar.value;

if (form.nt.value==0&form.td.value==0&form.ar.value==0)

{       form.na.value="N/A";}

return;

}

function compute3(form)

{

if (form.tr.value<.01 ||form.tr.value>99.9)

{       form.tr.value=1.00;}

if (form.tc.value<.01||form.tc.value>99.9)

{       form.tc.value=1.00;}

if (form.ar.value<1.00||form.ar.value>9.99)

{       form.ar.value=0;}     

if (form.rp.value<1||form.rp.value>99999)

{       form.rp.value=0;}

if (form.td.value<10||form.td.value>99)

{       form.td.value=0;}

form.mp.value = ((form.rp.value * form.td.value) / (form.ar.value * form.tr.value * form.tc.value * 336));

if (form.rp.value==0&form.ar.value==0&form.td.value==0)

{       form.mp.value="N/A";}

return;

}

function compute4(form)

{

if (form.tr.value<.01 ||form.tr.value>99.9)

{       form.tr.value=1.00;}

if (form.tc.value<.01||form.tc.value>99.9)

{       form.tc.value=1.00;}

if (form.ar.value<1.00||form.ar.value>9.99)

{       form.ar.value=0;}     

form.or.value = (form.tr.value * form.tc.value * form.ar.value);

if (form.ar.value==0)

{       form.or.value="N/A";}

return;

}

function compute5(form)

{

if (form.sw.value<50 ||form.sw.value>499)

{       form.sw.value=0;}

if (form.as.value<10||form.as.value>99)

{       form.as.value=0;}

if (form.rim.value<12||form.rim.value>19)

{       form.rim.value=0;}     

form.td.value = (((2 * form.sw.value * form.as.value) / 2540) + parseInt(form.rim.value));

if (form.sw.value==0||form.as.value==0||form.rim.value==0)

{       form.td.value="N/A";}

return;

}

function compute6(form)

{

if (form.ntd.value<1||form.ntd.value>499)

{       form.ntd.value=0;}

if (form.otd.value<1||form.otd.value>599)

{       form.otd.value=0;}

if (form.sv.value<1||form.sv.value>200)

{       form.sv.value=0;}     

form.ns.value = ((form.ntd.value/form.otd.value)*form.sv.value);

return;

}


function clear1(form)

{

form.mp.value = "";

form.ar.value = "";

form.tr.value = "";

form.tc.value = "";

form.rp.value = "";

form.td.value = "";

}

function clear2(form){

form.nt.value = "";

form.td.value = "";

form.ar.value = "";

form.na.value = "";

}

function clear3(form)

{

form.mp.value = "";

form.ar.value = "";

form.tr.value = "";

form.tc.value = "";

form.rp.value = "";

form.td.value = "";

}

function clear4(form)

{

form.tr.value = "";

form.tc.value = "";

form.ar.value = "";

form.or.value = "";

}

function clear5(form)

{

form.sw.value = "";

form.as.value = "";

form.rim.value = "";

form.td.value = "";

}

function clear6(form)

{

form.ntd.value = "";

form.otd.value = "";

form.sv.value = "";

form.ns.value = "";

}
//  End -->