function din580k()
    {


	    if (document.Sel.din580komb.selectedIndex=="0") {document.Sel.resdin580komb.value="0.060"} //8
	    if (document.Sel.din580komb.selectedIndex=="1") {document.Sel.resdin580komb.value="0.110"} //10
	    if (document.Sel.din580komb.selectedIndex=="2") {document.Sel.resdin580komb.value="0.180"} //12
	    if (document.Sel.din580komb.selectedIndex=="3") {document.Sel.resdin580komb.value="0.280"} //16
	    if (document.Sel.din580komb.selectedIndex=="4") {document.Sel.resdin580komb.value="0.450"} //20
	    if (document.Sel.din580komb.selectedIndex=="5") {document.Sel.resdin580komb.value="0.740"} //24
	    if (document.Sel.din580komb.selectedIndex=="6") {document.Sel.resdin580komb.value="1.660"} //30
	    if (document.Sel.din580komb.selectedIndex=="7") {document.Sel.resdin580komb.value="2.650"} //36
	    if (document.Sel.din580komb.selectedIndex=="8") {document.Sel.resdin580komb.value="4.030"} //42
	    if (document.Sel.din580komb.selectedIndex=="9") {document.Sel.resdin580komb.value="6.380"} //48
	    if (document.Sel.din580komb.selectedIndex=="10") {document.Sel.resdin580komb.value="8.800"} //56
	    if (document.Sel.din580komb.selectedIndex=="11") {document.Sel.resdin580komb.value="12.400"} //64
	    if (document.Sel.din580komb.selectedIndex=="12") {document.Sel.resdin580komb.value="23.300"} //72
	    if (document.Sel.din580komb.selectedIndex=="13") {document.Sel.resdin580komb.value="34.200"} //80
	    if (document.Sel.din580komb.selectedIndex=="14") {document.Sel.resdin580komb.value="49.100"} //100

		
	    document.Sel.itdin580komb.value=Math.round(document.Sel.resdin580komb.value*document.Sel.koldin580komb.value)/1000;
	    if (document.Sel.itdin580komb.value=="0") {document.Sel.itdin580komb.value=""}
    }
document.write("<b><font size='2'>DIN 580</font></b></span><b><font size='2'> </font></b></font>");
document.write("		</td>");
document.write("		<td width='87' height='27'><font color='#000080'><span lang='ru'>");
document.write("<select size='1' name='din580komb'  onclick='din580k()' onchange='din580k()' style='font-weight: 700; width:80; height:1'>");

document.write("<option>8</option><option>10</option><option>12</option><option>16</option><option>20</option><option>24</option><option>30</option><option>36</option><option>42</option><option>48</option><option>56</option><option>64</option><option>72</option><option>80</option><option>100</option>");


document.write("</select></span></font></td>");