//
// Copyright C 1997-2003 by 17 Web Place, all rights reserved
// this may not be used without written permission
//
//window globals
var dia=1.0;
var inc=1.0;
var height=1.0;
var striker=0;
var volume_per = 231.; // 231 cubic inches in a gallon
var len=0.0;
var astr ='
Tank Calculation Results ';
var err_msg="no msg";
var company_name="PPP Catalog";
function tankcalc (radio_array, units)
{
for (i = 0; i < units.length; ++ i)
{
if (units[i].checked) units_of_measure = units[i].value;
}
dia = parseFloat (document.tankspec.dia.value);
height = parseFloat (document.tankspec.height.value);
orientation = "vertical";
if (isNaN (dia))
{
dia=1.0;
tankspec.dia.value=dia;
}
if (isNaN (height))
{
height=1.0;
tankspec.height.value=height;
}
len=height;
for (i = 0; i < radio_array . length; ++ i)
{
if (radio_array [i].checked) orientation=radio_array [i].value;
}
if (document.tankspec.striker.checked) striker=1;
if (document.tankspec.increment.selectedIndex==0) inc=3;
if (document.tankspec.increment.selectedIndex==1) inc=2;
if (document.tankspec.increment.selectedIndex==2) inc=1;
if (document.tankspec.increment.selectedIndex==3) inc=.5;
if (document.tankspec.increment.selectedIndex==4) inc=.25;
if (document.tankspec.increment.selectedIndex==5) inc=.125;
astr ='
Tank Calculation results ';
astr +='';
astr +='';
astr +='';
astr +=""+orientation+" tank of diameter "+dia+" and length "+ height;
if (orientation=="Horizontal" && striker==1)
{
astr +=' with striker panels';
}
astr +="";
astr +="
";
if (units_of_measure == "cm")
{
astr +="
| CENTIMETERS | LITERS | CENTIMETERS | LITERS | CENTIMETERS | LITERS | CENTIMETERS | LITERS |
";
volume_per = 1000.; // 1000 cc,s in a liter
}
else astr +="
| INCHES | GALLONS | INCHES | GALLONS | INCHES | GALLONS | INCHES | GALLONS |
";
if (orientation=="Vertical")
{
vertical();
}
else
{
horizontal();
}
astr +="
";
astr +="©1997-2003 17 Web Place all rights reserved, used here by license";
astr +="";
document.write(astr);
}
function vertical()
{
var rad=dia / 2.0;
var ctot=(Math.PI * (rad*rad) * height)/volume_per;
var max=Math.round(height/inc);
for(i=1; i| "+cap+" | ";
if (i/4 ==Math.round(i/4))
{
astr +="";
}
}
}
function horizontal()
{
var hght=0.0;
var full=0.0;
var temp=0.0;
var air=0.0;
var rad=dia / 2.0;
var ctot=(Math.PI * (rad*rad) * height)/volume_per;
max=Math.round(dia/inc);
for(i=1; i rad) && (hght <= dia))
{
air = dia - hght;
temp = len*(((rad*rad) * Math.atan((Math.sqrt(air*(2*rad-air)))/(rad-air)))- ((rad-air)*Math.sqrt(air*(2*rad-air))))/ volume_per;
cap = ctot - temp;
}
if (hght > dia) cap=0.00;
if (cap!=0)
{
cap=Math.round(cap*1000)/1000
astr +="| "+height+" | "+cap+" | ";
}
if (i/4 ==Math.round(i/4))
{
astr +="
";
}
}
}