Metric Converter

Metric Converter

Convert from:

Convert to:

BY: vothcom@uniserve.com...Voth Communications
DATE:1996-06-28

COMMENTS FROM THE AUTHOR:
The following is for demonstration purposes and no guarantees regarding
the accuracy of the calculations are made.

Source Code

var computed = false
var destination = "http://www.seercom.com/vothcom/"
var decimal = 0

function convert (entryform, from, to)

{
        convertfrom = from.selectedIndex
        convertto = to.selectedIndex
        entryform.display.value = (entryform.input.value * from[convertfrom].value / to[convertto].value )
}

function addChar (input, character)
{

if((character=='.' && decimal=="0") || character!='.')

{
                (input.value == "" || input.value == "0") ? input.value = character : input.value += character

convert(input.form,input.form.measure1,input.form.measure2)
        
                computed = true

if (character=='.')
                {
                        decimal=1
                }       
        }
}

function openVothcom()
{
        window.open("","Display window","toolbar=no,directories=no,menubar=no");
}

function clear (form)
{
        form.input.value = 0
        form.display.value = 0
        decimal=0
}

function changeBackground(hexNumber)
{
        document.bgColor=hexNumber
}
// -->
					</script>
					<form method="POST" name="calculator">
					<table border="1" cellpadding="3">
						<tr>
							<th>Convert from:</th>
							<td><input size="15" name="input" type="text" onchange="convert(this.form,form.measure1, form.measure2)"></td>
							<td><select name="measure1" size="1" onchange="convert(this.form,this, form.measure2)">
									<option value="0.01" selected>cm
									<option value="1">m
									<option value="1000">km
									<option value="0.3048">feet
									<option value="0.9144">yds
									<option value="1610">mi
								</select> </td>
						</tr>
						<tr>
							<th>Convert to:</th>
							<td><input size="15" name="display" type="text"></td>
							<td><select name="measure2" size="1" onchange="convert(this.form,form.measure1, this)">
									<option value="0.01">cm
									<option value="1">m
									<option value="1000">km
									<option value="0.3048" selected>feet
									<option value="0.9144">yds
									<option value="1610">mi
								</select> </td>
						</tr>
						<tr>
							<td colspan="3">
								<center>
									<table border="0" cellpadding="2" cellspacing="2">
										<tr>
											<td><input type="button" value="7" onclick="addChar(this.form.input,'7')"></td>
											<td><input type="button" value="8" onclick="addChar(this.form.input,'8')"></td>
											<td><input type="button" value="9" onclick="addChar(this.form.input,'9')"></td>
										</tr>
										<tr>
											<td><input type="button" value="4" onclick="addChar(this.form.input,'4')"></td>
											<td><input type="button" value="5" onclick="addChar(this.form.input,'5')"></td>
											<td><input type="button" value="6" onclick="addChar(this.form.input,'6')"></td>
										</tr>
										<tr>
											<td><input type="button" value="1" onclick="addChar(this.form.input,'1')"></td>
											<td><input type="button" value="2" onclick="addChar(this.form.input,'2')"></td>
											<td><input type="button" value="3" onclick="addChar(this.form.input,'3')"></td>
										</tr>
										<tr>
											<td><input type="button" value="0" onclick="addChar(this.form.input,'0')"></td>
											<td><input type="button" value="." onclick="addChar(this.form.input,'.')"></td>
											<td><input type="button" value="C" onclick="clear(this.form)"></td>
										</tr>
									</table></center>
							</td>
						</tr>
					</table>