var select_width = 200;
function change_units()
{
var unit_value = document.getElementById("units").value;
var convert_div = document.getElementById("convert_div");
var output_string = "";
if(unit_value == "length")
{
output_string+= " ";
output_string+= "
IS EQUAL TO
";
output_string+= "";
output_string+= " ";
}
else if (unit_value == "spectral")
{
output_string+= " ";
output_string+= "
IS EQUAL TO
";
output_string+= " ";
output_string+= "";
}
else if (unit_value == "temperature")
{
output_string+= " ";
output_string+= "
IS EQUAL TO
";
output_string+= " ";
output_string+= "";
}
else if (unit_value == "radiance")
{
output_string+= "";
output_string+= "
IS EQUAL TO
";
output_string+= "";
output_string+= " ";
}
else if (unit_value == "pressure")
{
output_string+= " ";
output_string+= "
IS EQUAL TO
";
output_string+= "";
output_string+= " ";
}
else if (unit_value == "area")
{
output_string+= " ";
output_string+= "
IS EQUAL TO
";
output_string+= "";
output_string+= " ";
}
else if (unit_value == "volume")
{
output_string+= " ";
output_string+= "
IS EQUAL TO
";
output_string+= "";
output_string+= " ";
}
convert_div.innerHTML = output_string;
}
function getHTTPObject()
{
var xmlhttp;
/*@cc_on
@if (@_jscript_version >= 5)
try {
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (E) {
xmlhttp = false;
}
}
@else
xmlhttp = false;
@end @*/
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
try {
xmlhttp = new XMLHttpRequest();
} catch (e) {
xmlhttp = false;
}
}
return xmlhttp;
}
var myhttp = "";
function convert_answer2(which_function,val1,val2,val3,which_value,val4,val5)
{
var conv_url = "val1=" + val1 + "&val2=" + val2 + "&val3=" + val3 + "&which_value=" + which_value + "&func=" + which_function + "&val4=" + val4 + "&val5=" + val5;
// myhttp.open("GET", conv_url, true);
// myhttp.onreadystatechange = conv_result;
// myhttp.send(null);
myhttp = getHTTPObject();
myhttp.open("POST", "convert_answer.php", true);
myhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
myhttp.setRequestHeader("Content-length", conv_url.length);
myhttp.setRequestHeader("Connection", "close");
myhttp.onreadystatechange = conv_result;
myhttp.send(conv_url);
} //end function convert_answer2
function conv_result()
{
if(myhttp.readyState == 4)
{
var convert_xml = myhttp.responseXML;
// window.alert(myhttp.responseText);
var which_input = convert_xml.getElementsByTagName('which_value').item(0).firstChild.data;
var conv_answer = convert_xml.getElementsByTagName('myanswer').item(0).firstChild.data;
if(which_input == "1")
{
var calc1 = document.getElementById("calc1");
calc1.value = conv_answer;
}
else
{
var calc2 = document.getElementById("calc2");
calc2.value = conv_answer;
}
}
} //end function conv_result
function convert_length(which_action)
{
var calc1 = document.getElementById("calc1");
var calc2 = document.getElementById("calc2");
var select1_val = document.getElementById("select1").value;
var select2_val = document.getElementById("select2").value;
var mult = 0;
var convert = 0;
var a_array = new Array(1, Math.pow(10,3), Math.pow(10,-2), Math.pow(10,-3), Math.pow(10,-6), Math.pow(10,-9), Math.pow(10,-10), 1609.344, 0.9144, 0.3048, 0.0254, 2.54*Math.pow(10,-5), 1852);
if((which_action == "select1") || (which_action == "calc1") || (which_action == "select2"))
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("length",a_array[select1_val],a_array[select2_val],calc1.value,2,0,0);
}
}
else if (which_action == "calc2")
{
if(isNaN(parseFloat(calc2.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("length",a_array[select1_val],a_array[select2_val],calc2.value, 1,0,0);
}
} //end else if which_action = calc2
} //end convert_length function
function convert_spectral(which_action)
{
var calc1 = document.getElementById("calc1");
var calc2 = document.getElementById("calc2");
var select1_val = document.getElementById("select1").value;
var select2_val = document.getElementById("select2").value;
var convert = 0;
var a_array = new Array(1,0, 0, 0, 3.335641*(Math.pow(10,-11)),3.335641*Math.pow(10,-2), 3.335641*Math.pow(10,1));
var b_array = new Array(0, Math.pow(10,4), Math.pow(10,7), Math.pow(10,8), 0, 0, 0);
var c_array = new Array(1, 0, 0, 0, 2.99792458*Math.pow(10, 10), 29.9792458, 0.0299792458);
var d_array = new Array(0, Math.pow(10,4), Math.pow(10, 7), Math.pow(10,8), 0, 0, 0 );
var convert_left = 0;
var convert_right = 0;
var convert = 0;
if((which_action == "select1") || (which_action == "calc1") || (which_action == "select2"))
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("spectral",a_array[select1_val],b_array[select1_val],calc1.value,2,c_array[select2_val],d_array[select2_val]);
}
}
else if (which_action == "calc2")
{
if(isNaN(parseFloat(calc2.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("spectral",a_array[select2_val],b_array[select2_val],calc2.value,1,c_array[select1_val],d_array[select1_val]);
}
}
} //end convert_spectral function
function convert_temperature(which_action)
{
var calc1 = document.getElementById("calc1");
var calc2 = document.getElementById("calc2");
var select1_val = document.getElementById("select1").value;
var select2_val = document.getElementById("select2").value;
var convert = 0;
var a = 5/9;
var b = 273.15 - (160/9);
var a_array = new Array(1, a, 1);
var b_array = new Array(0, b, 273.15);
var left_ans = 0;
var right_ans = 0;
if((which_action == "select1") || (which_action == "calc1") || (which_action == "select2"))
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
left_ans = (a_array[select1_val]/a_array[select2_val])*calc1.value;
right_ans = (b_array[select1_val] - b_array[select2_val])/a_array[select2_val];
convert = left_ans + right_ans;
calc2.value = Math.round(convert*100000)/100000;
// convert_answer2("temperature",a_array[select1_val],a_array[select2_val],calc1.value,2,b_array[select1_val],b_array[select2_val]);
}
}
else if (which_action == "calc2")
{
if(isNaN(parseFloat(calc2.value)))
{
window.alert("Please enter a numeric value");
}
else
{
left_ans = (a_array[select2_val]/a_array[select1_val])*calc2.value;
right_ans = (b_array[select2_val] - b_array[select1_val])/a_array[select1_val];
convert = left_ans + right_ans;
// convert_answer2("temperature",a_array[select1_val],a_array[select2_val],calc2.value,1,b_array[select1_val],b_array[select2_val]);
calc1.value = Math.round(convert*100000)/100000;
}
}
} //end convert_temperature functions
function convert_pressure(which_action)
{
var calc1 = document.getElementById("calc1");
var calc2 = document.getElementById("calc2");
var select1_val = document.getElementById("select1").value;
var select2_val = document.getElementById("select2").value;
var convert = 0;
var a_array = new Array(1, 100, 100000, 101325, 100, 133.322, 3386.389, 6894.757);
if((which_action == "select1") || (which_action == "calc1") || (which_action == "select2"))
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("pressure",a_array[select1_val],a_array[select2_val],calc1.value, 2,0,0);
}
}
else if (which_action == "calc2")
{
if(isNaN(parseFloat(calc2.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("pressure",a_array[select1_val],a_array[select2_val],calc2.value, 1,0,0);
}
}
} //end convert_pressure function
function convert_radiance(which_action)
{
var calc1 = document.getElementById("calc1");
var calc2 = document.getElementById("calc2");
var select1_val = document.getElementById("select1").value;
var select2_val = document.getElementById("select2").value;
var convert = 0;
var wave1 = "";
var wave2 = "";
var mult1 = "";
var mult2 = "";
var convert_array = new Array(1, Math.pow(10,-4), Math.pow(10,-7), Math.pow(10,-10), 1.986445602*Math.pow(10,-23), 1.986445602*Math.pow(10,-27));
if((which_action == "calc1") || (which_action == "wave1"))
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
mult1 = convert_array[select1_val];
mult2 = convert_array[select2_val];
if((select1_val == 4) || (select1_val == 5))
{
wave1 = document.getElementById("wave1").value;
mult1 = mult1*wave1;
}
if((select2_val == 4) || (select2_val == 5))
{
wave2 = document.getElementById("wave2").value;
mult2 = mult2*wave2;
}
convert_answer2("radiance", mult1, mult2, calc1.value, 2, 0, 0);
}
} //end which_action = calc1 || wave1
else if ((which_action == "calc2") || (which_action == "wave2"))
{
if(isNaN(parseFloat(calc2.value)))
{
window.alert("Please enter a numeric value");
}
else
{
mult1 = convert_array[select1_val];
mult2 = convert_array[select2_val];
if((select1_val == 4) || (select1_val == 5) || (select2_val == 4) || (select2_val == 5))
{
if((select1_val == 4) || (select1_val == 5))
{
wave1 = document.getElementById("wave1").value;
mult1 = mult1*wave1;
}
if((select2_val == 4) || (select2_val == 5))
{
wave2 = document.getElementById("wave2").value;
mult2 = mult2*wave2;
}
}
convert_answer2("radiance", mult1, mult2, calc2.value, 1, 0, 0);
}
} //end if which_action == calc2
else if (which_action == "select1")
{
if((select1_val == 4) || (select1_val == 5))
{
var rad_div1 = document.getElementById("wave_div1");
rad_div1.innerHTML = "Wavenumber: cm-1";
convert_radiance("wave1");
}
else
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
var rad_div1 = document.getElementById("wave_div1");
rad_div1.innerHTML = "";
mult1 = convert_array[select1_val];
mult2 =convert_array[select2_val];
convert_answer2("radiance", mult1, mult2, calc1.value, 2, 0, 0);
}
}
} //end else if which_action = select1
else if (which_action == "select2")
{
if ((select2_val == 4) || (select2_val == 5))
{
var rad_div2 = document.getElementById("wave_div2");
rad_div2.innerHTML = "Wavenumber: cm-1";
convert_radiance("wave2");
}
else
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
var rad_div2 = document.getElementById("wave_div2");
rad_div2.innerHTML = "";
mult1 = convert_array[select1_val];
mult2 =convert_array[select2_val];
convert_answer2("radiance", mult1, mult2, calc1.value, 2, 0, 0);
}
}
}//end else if which_action = select2
} //end convert_radiance function
function convert_area(which_action)
{
var calc1 = document.getElementById("calc1");
var calc2 = document.getElementById("calc2");
var select1_val = document.getElementById("select1").value;
var select2_val = document.getElementById("select2").value;
var convert = 0;
var a_array = new Array(1,Math.pow(10,6), Math.pow(10,4), Math.pow(10,-4), Math.pow(10,-6), Math.pow(10,-12), 3429904, 2589988.11,4046.856422,0.83612736,0.09290304,6.4516*(Math.pow(10,-4)));
if((which_action == "select1") || (which_action == "calc1") || (which_action == "select2"))
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("area",a_array[select1_val],a_array[select2_val],calc1.value, 2,0,0);
}
}
else if (which_action == "calc2")
{
if(isNaN(parseFloat(calc2.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("area",a_array[select1_val],a_array[select2_val],calc2.value, 1,0,0);
}
}
} //end function convert_area
function convert_volume(which_action)
{
var calc1 = document.getElementById("calc1");
var calc2 = document.getElementById("calc2");
var select1_val = document.getElementById("select1").value;
var select2_val = document.getElementById("select2").value;
var convert = 0;
var a_array = new Array(1, Math.pow(10,-3), Math.pow(10,-6), Math.pow(10,9), Math.pow(10,-6), Math.pow(10,-9), Math.pow(10,-18), 5*(Math.pow(10,-6)),15*(Math.pow(10,-6)),2.365882365*(Math.pow(10,-4)),2.957352956*(Math.pow(10,-5)),4.73176473*(Math.pow(10,-4)),9.46352946*(Math.pow(10,-4)),3.785411784*(Math.pow(10,-3)),1233.489238,0.254851614,0.028316846592,1.6387064*(Math.pow(10,-5)) , 0.158987294);
if((which_action == "select1") || (which_action == "calc1") || (which_action == "select2"))
{
if(isNaN(parseFloat(calc1.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("volume",a_array[select1_val],a_array[select2_val],calc1.value, 2,0,0);
}
}
else if (which_action == "calc2")
{
if(isNaN(parseFloat(calc2.value)))
{
window.alert("Please enter a numeric value");
}
else
{
convert_answer2("volume",a_array[select1_val],a_array[select2_val],calc2.value, 1,0,0);
}
}
} //end function convert_volume