// JScript 文件

function clrAll(){document.getElementById("kv").value="";document.getElementById("suv").innerHTML="";document.getElementById("txtAlert").innerHTML="";}
function FormatNumber(srcStr,nAfterDot){var srcStr,nAfterDot;var resultStr,nTen;srcStr=""+srcStr+"";strLen=srcStr.length;dotPos=srcStr.indexOf(".",0);if(dotPos==-1){resultStr=srcStr+".";for(i=0;i<nAfterDot;i++){resultStr=resultStr+"0";}　return resultStr;}else{if((strLen-dotPos-1)>=nAfterDot){nAfter=dotPos+nAfterDot+1;nTen=1;for(j=0;j<nAfterDot;j++){nTen=nTen*10;}resultStr=Math.round(parseFloat(srcStr)*nTen)/nTen;return resultStr;}else{resultStr=srcStr;for(i=0;i<(nAfterDot-strLen+dotPos+1);i++){resultStr=resultStr+"0";}return resultStr;}}}
function Altertemp(){var unit_t;var t,t2,vaT;vaT=valiTemp();if(vaT==true){Initemp();}}
function Initemp(){t=parseFloat(document.getElementById("temp").value);unit_t=document.getElementById("Select1").value;if(unit_t=="F"){t2=5/9*(t-32);t2=FormatNumber(t2,1);document.getElementById("temp2").innerHTML="("+t2+"°C)";}else{t2=(9/5*t)+32;t2=FormatNumber(t2,1);document.getElementById("temp2").innerHTML="("+t2+"°F)";}}
function valiTemp(){var t;var unit_t;var txtKV;document.getElementById("temp").value=document.getElementById("temp").value.replace(/,/,".");document.getElementById("kv").value=document.getElementById("kv").value.replace(/,/,".");if(document.getElementById("temp").value==""||isNaN(document.getElementById("temp").value)){document.getElementById("txtAlert").innerHTML="Note, input temperature must be a number!";document.getElementById("temp").focus();document.getElementById("temp").select();return(false);}t=parseFloat(document.getElementById("temp").value);unit_t=document.getElementById("Select1").value;if(unit_t=="F"){t=parseFloat(document.getElementById("temp").value);}else{t=parseFloat(document.getElementById("temp").value);t=(9/5*t)+32;}if((t<0)||(t>350)){document.getElementById("txtAlert").innerHTML="Note, this calcualtion applies to the temperature range 0 to 350 Fahrenheit. The input temperature is out of the range.";document.getElementById("temp").focus();document.getElementById("temp").select();return(false);}document.getElementById("txtAlert").innerHTML="";return true;}
  
function valiKV(){if(document.getElementById("kv").value==""||isNaN(document.getElementById("kv").value)){document.getElementById("txtAlert").innerHTML="Note, input KV must be a number!";document.getElementById("kv").focus();document.getElementById("kv").select();return(false);}txtKV=document.getElementById("kv").value;if((txtKV<1.81)||(txtKV>10000)){document.getElementById("txtAlert").innerHTML="Note, this calcualtion applies to the KV range 1.81 to 10000 cSt. The input KV is out of the range.";document.getElementById("kv").focus();document.getElementById("kv").select();return(false);}return true;} 
function valiAll(){var vT,vK;vT=valiTemp();vK=valiKV();if((vT==true)&&(vK==true)){document.getElementById("txtAlert").innerHTML="";return true;}else{return false;}}
  
function calSUS(){var txtkv,t,unit_t;var U100,Ut,B,vaT;vaT=valiAll();if(vaT==false){return false;}txtkv=parseFloat(document.getElementById("kv").value);unit_t=document.getElementById("Select1").value;if(unit_t=="F"){t=parseFloat(document.getElementById("temp").value);}else{t=parseFloat(document.getElementById("temp").value);t=(9/5*t)+32;}if((t<0)||(t>350)){document.getElementById("txtAlert").innerHTML="Note, this calcualtion applies to the temperature range 0 to 350 Fahrenheit. The input temperature is out of the range.";return(false);}if(txtkv<=499.5){U100=4.6324*txtkv+(1.00+0.03264*txtkv)*100000/(3930.2+262.7*txtkv+23.97*txtkv*txtkv+1.646*txtkv*txtkv*txtkv);Ut=(1.0+0.000061*(t-100))*U100;}else{if((t>=0)&&(t<30)){B=4.634+0.0003*(t-100);}if((t>=30)&&(t<40)){B=4.627+0.0002*(t-100);}if((t>=40)&&(t<90)){B=4.633+0.0003*(t-100);}if((t>=90)&&(t<100)){B=4.632+0.0002*(t-100);}if((t>=100)&&(t<150)){B=4.632+0.0003*(t-100);}if((t>=150)&&(t<160)){B=4.637+0.0002*(t-100);}if((t>=160)&&(t<210)){B=4.631+0.0003*(t-100);}if((t>=210)&&(t<220)){B=4.642+0.0002*(t-100);}if((t>=220)&&(t<260)){B=4.63+0.0003*(t-100);}if((t>=260)&&(t<270)){B=4.646+0.0002*(t-100);}if((t>=270)&&(t<320)){B=4.629+0.0003*(t-100);}if((t>=320)&&(t<330)){B=4.651+0.0002*(t-100);}if((t>=330)&&(t<350)){B=4.628+0.0003*(t-100);}Ut=txtkv*B;}if(Ut<200){Ut=FormatNumber(Ut,1);}else{Ut=FormatNumber(Ut,0);}document.getElementById("suv").innerHTML=Ut;}

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