function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function reSpace(entry) {
	out = " "; // replace this
	add = "+"; // with this
	temp = "" + entry; // temporary holder
	
	while (temp.indexOf(out)>-1) {
	pos= temp.indexOf(out);
	temp = "" + (temp.substring(0, pos) + add + 
	temp.substring((pos + out.length), temp.length));
	}
	return temp;
	}
function getNumber(val){
	val = reSpace(val);
	tempval = eval(val);
	return parseFloat(tempval);
}
function calcPlate(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.width.value) * getNumber(thisform.thickness.value) * getNumber(thisform.var1.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function calcCircle(thisform){
	var answer;
	answer = (getNumber(thisform.OD.value) * getNumber(thisform.OD.value) * getNumber(thisform.thickness.value) * getNumber(thisform.var2.value)) - (getNumber(thisform.ID.value) * getNumber(thisform.ID.value) * getNumber(thisform.thickness.value) * getNumber(thisform.var2.value)) ;
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function convInch(thisform){
	var answer;
	answer = getNumber(thisform.length.value) / getNumber(thisform.var3.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function convMilli(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.var4.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function poundstokilos(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.var5.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function kilostopounds(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.var6.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function MT_Pounds(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.var7.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function MT_Tons(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.var8.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function convFC(thisform){
	var answer;
	answer = (5/9)*(getNumber(thisform.length.value) - 32);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function convCF(thisform){
	var answer;
	answer = ((9/5)*getNumber(thisform.length.value)) + 32;
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function ftJoules(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.var9.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function JoulesFt(thisform){
	var answer;
	answer = getNumber(thisform.length.value) / getNumber(thisform.var10.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function MPaPSI(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.var11.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function MPaKSI(thisform){
	var answer;
	answer = getNumber(thisform.length.value) * getNumber(thisform.var12.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function psi_MPa(thisform){
	var answer;
	answer = getNumber(thisform.length.value) / getNumber(thisform.var13.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function ksi_MPa(thisform){
	var answer;
	answer = getNumber(thisform.length.value) / getNumber(thisform.var14.value);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function carbon(thisform){
	var answer;
	answer = getNumber(thisform.C.value) + getNumber((thisform.Mn.value)/6) + ((getNumber(thisform.Cr.value) + getNumber(thisform.Mo.value) + getNumber(thisform.V.value))/5) + ((getNumber(thisform.Cu.value) + getNumber(thisform.Ni.value))/15);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}
function PcM(thisform){
	var answer;
	// C + Si/30 + (Mn+Cu+Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B
	answer = getNumber(thisform.C.value) + (getNumber(thisform.Si.value)/30) + ((getNumber(thisform.Mn.value) + getNumber(thisform.Cu.value) + getNumber(thisform.Cr.value))/20) + (getNumber(thisform.Ni.value)/60) + (getNumber(thisform.Mo.value)/15) + (getNumber(thisform.V.value)/10) + (getNumber(thisform.B.value)*5);
	thisform.weight.readonly =false;
	thisform.weight.value = answer;
	thisform.weight.readonly = true;
}