function interpolate() {
	document.getElementById('ppcm').value=document.getElementById('ppi').value / 2.54

	document.getElementById('nulstartx').value=document.getElementById('startx').value
	document.getElementById('nulstarty').value=document.getElementById('starty').value
	
	//document.getElementById('startxcm').value=Math.round(document.getElementById('nulstartx').value /300 * 2.54 *100)/100
	//document.getElementById('startycm').value=Math.round(document.getElementById('nulstarty').value /300 * 2.54 *100)/100
	
	document.getElementById('startxcm').value=Math.round(document.getElementById('nulstartx').value /document.getElementById('ppcm').value *100)/100
	document.getElementById('startycm').value=Math.round(document.getElementById('nulstarty').value /document.getElementById('ppcm').value *100)/100
	
	document.getElementById('1cm_x10').value=Math.round(document.getElementById('startxcm').value *1.1 *100)/100
	document.getElementById('1cm_y10').value=Math.round(document.getElementById('startycm').value *1.1 *100)/100
	
	document.getElementById('1cm_x20').value=Math.round(document.getElementById('startxcm').value *1.2 *100)/100
	document.getElementById('1cm_y20').value=Math.round(document.getElementById('startycm').value *1.2 *100)/100
	
	document.getElementById('1px_x10').value=Math.round(document.getElementById('startx').value * 1.1) /1
	document.getElementById('2px_x10').value=Math.round(document.getElementById('1px_x10').value * 1.1) /1
	document.getElementById('3px_x10').value=Math.round(document.getElementById('2px_x10').value * 1.1) /1
	document.getElementById('4px_x10').value=Math.round(document.getElementById('3px_x10').value * 1.1) /1
	document.getElementById('5px_x10').value=Math.round(document.getElementById('4px_x10').value * 1.1) /1
	document.getElementById('6px_x10').value=Math.round(document.getElementById('5px_x10').value * 1.1) /1
	document.getElementById('7px_x10').value=Math.round(document.getElementById('6px_x10').value * 1.1) /1
	document.getElementById('8px_x10').value=Math.round(document.getElementById('7px_x10').value * 1.1) /1
	document.getElementById('9px_x10').value=Math.round(document.getElementById('8px_x10').value * 1.1) /1
	document.getElementById('10px_x10').value=Math.round(document.getElementById('9px_x10').value * 1.1) /1
	
	document.getElementById('1px_y10').value=Math.round(document.getElementById('starty').value * 1.1) /1
	document.getElementById('2px_y10').value=Math.round(document.getElementById('1px_y10').value * 1.1) /1
	document.getElementById('3px_y10').value=Math.round(document.getElementById('2px_y10').value * 1.1) /1
	document.getElementById('4px_y10').value=Math.round(document.getElementById('3px_y10').value * 1.1) /1
	document.getElementById('5px_y10').value=Math.round(document.getElementById('4px_y10').value * 1.1) /1
	document.getElementById('6px_y10').value=Math.round(document.getElementById('5px_y10').value * 1.1) /1
	document.getElementById('7px_y10').value=Math.round(document.getElementById('6px_y10').value * 1.1) /1
	document.getElementById('8px_y10').value=Math.round(document.getElementById('7px_y10').value * 1.1) /1
	document.getElementById('9px_y10').value=Math.round(document.getElementById('8px_y10').value * 1.1) /1
	document.getElementById('10px_y10').value=Math.round(document.getElementById('9px_y10').value * 1.1) /1
	
	document.getElementById('1px_x20').value=Math.round(document.getElementById('startx').value * 1.2) /1
	document.getElementById('2px_x20').value=Math.round(document.getElementById('1px_x20').value * 1.2) /1
	document.getElementById('3px_x20').value=Math.round(document.getElementById('2px_x20').value * 1.2) /1
	document.getElementById('4px_x20').value=Math.round(document.getElementById('3px_x20').value * 1.2) /1
	document.getElementById('5px_x20').value=Math.round(document.getElementById('4px_x20').value * 1.2) /1
	document.getElementById('6px_x20').value=Math.round(document.getElementById('5px_x20').value * 1.2) /1
	document.getElementById('7px_x20').value=Math.round(document.getElementById('6px_x20').value * 1.2) /1
	document.getElementById('8px_x20').value=Math.round(document.getElementById('7px_x20').value * 1.2) /1
	document.getElementById('9px_x20').value=Math.round(document.getElementById('8px_x20').value * 1.2) /1
	document.getElementById('10px_x20').value=Math.round(document.getElementById('9px_x20').value * 1.2) /1
	
	document.getElementById('1px_y20').value=Math.round(document.getElementById('starty').value * 1.2) /1
	document.getElementById('2px_y20').value=Math.round(document.getElementById('1px_y20').value * 1.2) /1
	document.getElementById('3px_y20').value=Math.round(document.getElementById('2px_y20').value * 1.2) /1
	document.getElementById('4px_y20').value=Math.round(document.getElementById('3px_y20').value * 1.2) /1
	document.getElementById('5px_y20').value=Math.round(document.getElementById('4px_y20').value * 1.2) /1
	document.getElementById('6px_y20').value=Math.round(document.getElementById('5px_y20').value * 1.2) /1
	document.getElementById('7px_y20').value=Math.round(document.getElementById('6px_y20').value * 1.2) /1
	document.getElementById('8px_y20').value=Math.round(document.getElementById('7px_y20').value * 1.2) /1
	document.getElementById('9px_y20').value=Math.round(document.getElementById('8px_y20').value * 1.2) /1
	document.getElementById('10px_y20').value=Math.round(document.getElementById('9px_y20').value * 1.2) /1
	
	document.getElementById('2cm_x10').value=Math.round(document.getElementById('1cm_x10').value * 1.1 *100) /100
	document.getElementById('3cm_x10').value=Math.round(document.getElementById('2cm_x10').value * 1.1 *100) /100
	document.getElementById('4cm_x10').value=Math.round(document.getElementById('3cm_x10').value * 1.1 *100) /100
	document.getElementById('5cm_x10').value=Math.round(document.getElementById('4cm_x10').value * 1.1 *100) /100
	document.getElementById('6cm_x10').value=Math.round(document.getElementById('5cm_x10').value * 1.1 *100) /100
	document.getElementById('7cm_x10').value=Math.round(document.getElementById('6cm_x10').value * 1.1 *100) /100
	document.getElementById('8cm_x10').value=Math.round(document.getElementById('7cm_x10').value * 1.1 *100) /100
	document.getElementById('9cm_x10').value=Math.round(document.getElementById('8cm_x10').value * 1.1 *100) /100
	document.getElementById('10cm_x10').value=Math.round(document.getElementById('9cm_x10').value * 1.1 *100) /100
	
	document.getElementById('2cm_y10').value=Math.round(document.getElementById('1cm_y10').value * 1.1 *100) /100
	document.getElementById('3cm_y10').value=Math.round(document.getElementById('2cm_y10').value * 1.1 *100) /100
	document.getElementById('4cm_y10').value=Math.round(document.getElementById('3cm_y10').value * 1.1 *100) /100
	document.getElementById('5cm_y10').value=Math.round(document.getElementById('4cm_y10').value * 1.1 *100) /100
	document.getElementById('6cm_y10').value=Math.round(document.getElementById('5cm_y10').value * 1.1 *100) /100
	document.getElementById('7cm_y10').value=Math.round(document.getElementById('6cm_y10').value * 1.1 *100) /100
	document.getElementById('8cm_y10').value=Math.round(document.getElementById('7cm_y10').value * 1.1 *100) /100
	document.getElementById('9cm_y10').value=Math.round(document.getElementById('8cm_y10').value * 1.1 *100) /100
	document.getElementById('10cm_y10').value=Math.round(document.getElementById('9cm_y10').value * 1.1 *100) /100
	
	document.getElementById('2cm_x20').value=Math.round(document.getElementById('1cm_x20').value * 1.2 *100) /100
	document.getElementById('3cm_x20').value=Math.round(document.getElementById('2cm_x20').value * 1.2 *100) /100
	document.getElementById('4cm_x20').value=Math.round(document.getElementById('3cm_x20').value * 1.2 *100) /100
	document.getElementById('5cm_x20').value=Math.round(document.getElementById('4cm_x20').value * 1.2 *100) /100
	document.getElementById('6cm_x20').value=Math.round(document.getElementById('5cm_x20').value * 1.2 *100) /100
	document.getElementById('7cm_x20').value=Math.round(document.getElementById('6cm_x20').value * 1.2 *100) /100
	document.getElementById('8cm_x20').value=Math.round(document.getElementById('7cm_x20').value * 1.2 *100) /100
	document.getElementById('9cm_x20').value=Math.round(document.getElementById('8cm_x20').value * 1.2 *100) /100
	document.getElementById('10cm_x20').value=Math.round(document.getElementById('9cm_x20').value * 1.2 *100) /100
	
	document.getElementById('2cm_y20').value=Math.round(document.getElementById('1cm_y20').value * 1.2 *100) /100
	document.getElementById('3cm_y20').value=Math.round(document.getElementById('2cm_y20').value * 1.2 *100) /100
	document.getElementById('4cm_y20').value=Math.round(document.getElementById('3cm_y20').value * 1.2 *100) /100
	document.getElementById('5cm_y20').value=Math.round(document.getElementById('4cm_y20').value * 1.2 *100) /100
	document.getElementById('6cm_y20').value=Math.round(document.getElementById('5cm_y20').value * 1.2 *100) /100
	document.getElementById('7cm_y20').value=Math.round(document.getElementById('6cm_y20').value * 1.2 *100) /100
	document.getElementById('8cm_y20').value=Math.round(document.getElementById('7cm_y20').value * 1.2 *100) /100
	document.getElementById('9cm_y20').value=Math.round(document.getElementById('8cm_y20').value * 1.2 *100) /100
	document.getElementById('10cm_y20').value=Math.round(document.getElementById('9cm_y20').value * 1.2 *100) /100
}
//addLoadListener(interpolate);