//**************************************
//     
// Name: Show form values in metric or i
//     mperial
// Description:Display a form's values i
//     n either metric or inch format. As this 
//     was developed for an online CADCAM appli
//     cation the precision is fairly high, 3 d
//     ecimal places for the metric format and 
//     5 decimal places for the imperial.
// By: Simon Goodwin
//
// Inputs:transpose('metric'||'imperial'
//     )
//
// Assumes:The transpose() function will
//     act upon any text or select inputs that 
//     are present in forms[0].
Checkboxs are assumed to be boolean and are ignored.
//
// Side Effects:Only tested on IE5+
//
//This code is copyrighted and has// limited warranties.Please see http://
//     www.Planet-Source-Code.com/vb/scripts/Sh
//     owCode.asp?txtCodeId=3596&lngWId;=2//for details.//**************************************
//     

function round2(x,places)
    {
    var p = Math.pow(10,places)
    var n=new Number(Math.round(x*p)/p);
    return n.toFixed(places);
}

function transpose(scale)
    {
    if(scale==document.forms[0].current.value)
        {
        return;
    }

    else
        {
        // hidden form element used to keep curr
        //     ent format id
        document.forms[0].current.value = scale;
    }

    if(scale.indexOf("imperial")!=-1)
        {
        document.title="Machining Engine Parameters [Imperial]";
        for(var i=0;i < document.forms[0].elements.length;i++)
            {
            	switch(document.forms[0].elements[i].type)
                	{
                	case "text":
                	document.forms[0].elements[i].value = round2(parseFloat(document.forms[0].elements[i].value / 25.4),5);
                	break;
                	case "select-one":
                		for(var j = 0;j < document.forms[0].elements[i].options.length;j++)
                    		{
                    		document.forms[0].elements[i].options[j].text = round2(parseFloat(document.forms[0].elements[i].options[j].text / 25.4),5);
                    		document.forms[0].elements[i].options[j].value = round2(parseFloat(document.forms[0].elements[i].options[j].value / 25.4),5);
                    		}	
                    	break;	
                    	}
                }

            }

            else
                {
                document.title="Machining Engine Parameters [Metric]";
                for(var i=0;i < document.forms[0].elements.length;i++)
                    {
                    	switch(document.forms[0].elements[i].type)
                        	{
                        	case "text":
                        	document.forms[0].elements[i].value = round2(parseFloat(document.forms[0].elements[i].value * 25.4),3);
                        	break;
                        	case "select-one":
                        	for(var j = 0;j < document.forms[0].elements[i].options.length;j++)
                            	{
                            	 document.forms[0].elements[i].options[j].text = round2(parseFloat(document.forms[0].elements[i].options[j].text * 25.4),3);
                            	 document.forms[0].elements[i].options[j].value = round2(parseFloat(document.forms[0].elements[i].options[j].value * 25.4),3);
                            	}
                            	break;	
                            	}
                        }

                    }

                }

                // <!-- HTML --> //
                <Inpu[t] onClick="transpose('metric')">
                <!-- ADD your controls here -->