function checkSoilLayers(countReceived)
{
	disableFeilds=eval('document.form1.soilLayers'+countReceived+'.value==""');
	if(!disableFeilds)
	{
		layer0=eval('document.form1.soilLayers'+countReceived+'.value=="0 None"');
		layer1=eval('document.form1.soilLayers'+countReceived+'.value=="1 Layer"');
		layer2=eval('document.form1.soilLayers'+countReceived+'.value=="2 Layers"');
		layer3=eval('document.form1.soilLayers'+countReceived+'.value=="3 Layers"');

		if(layer0)
		{
			eval('document.form1.layer1Bottom'+countReceived+'.disabled=true');
			eval('document.form1.layer2Bottom'+countReceived+'.disabled=true');
			eval('document.form1.layer3Bottom'+countReceived+'.disabled=true');
			eval('document.form1.layer1Nitrate'+countReceived+'.disabled=true');
			eval('document.form1.layer2Nitrate'+countReceived+'.disabled=true');
			eval('document.form1.layer3Nitrate'+countReceived+'.disabled=true');
			eval('document.form1.layer1Bottom'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer2Bottom'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer3Bottom'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer1Nitrate'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer2Nitrate'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer3Nitrate'+countReceived+'.style.backgroundColor="gray"');
		}
		else if(layer1)
		{
			eval('document.form1.layer1Bottom'+countReceived+'.disabled=false');
			eval('document.form1.layer2Bottom'+countReceived+'.disabled=true');
			eval('document.form1.layer3Bottom'+countReceived+'.disabled=true');
			eval('document.form1.layer1Nitrate'+countReceived+'.disabled=false');
			eval('document.form1.layer2Nitrate'+countReceived+'.disabled=true');
			eval('document.form1.layer3Nitrate'+countReceived+'.disabled=true');
			eval('document.form1.layer1Bottom'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer2Bottom'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer3Bottom'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer1Nitrate'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer2Nitrate'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer3Nitrate'+countReceived+'.style.backgroundColor="gray"');
		}
		else if(layer2)
		{
			eval('document.form1.layer1Bottom'+countReceived+'.disabled=false');
			eval('document.form1.layer2Bottom'+countReceived+'.disabled=false');
			eval('document.form1.layer3Bottom'+countReceived+'.disabled=true');
			eval('document.form1.layer1Nitrate'+countReceived+'.disabled=false');
			eval('document.form1.layer2Nitrate'+countReceived+'.disabled=false');
			eval('document.form1.layer3Nitrate'+countReceived+'.disabled=true');
			eval('document.form1.layer1Bottom'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer2Bottom'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer3Bottom'+countReceived+'.style.backgroundColor="gray"');
			eval('document.form1.layer1Nitrate'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer2Nitrate'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer3Nitrate'+countReceived+'.style.backgroundColor="gray"');
		}
		else if(layer3)
		{
			eval('document.form1.layer1Bottom'+countReceived+'.disabled=false');
			eval('document.form1.layer2Bottom'+countReceived+'.disabled=false');
			eval('document.form1.layer3Bottom'+countReceived+'.disabled=false');
			eval('document.form1.layer1Nitrate'+countReceived+'.disabled=false');
			eval('document.form1.layer2Nitrate'+countReceived+'.disabled=false');
			eval('document.form1.layer3Nitrate'+countReceived+'.disabled=false');
			eval('document.form1.layer1Bottom'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer2Bottom'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer3Bottom'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer1Nitrate'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer2Nitrate'+countReceived+'.style.backgroundColor="white"');
			eval('document.form1.layer3Nitrate'+countReceived+'.style.backgroundColor="white"');
		}
	}
}

/*function checkManurePhosphorusType(countReceived)
{
	manurePhosphorusType=eval('document.form1.manurePhosphorusType'+countReceived);
	manurePhosphorusTerms=eval('document.form1.manurePhosphorusTerms'+countReceived);
	manurePhosphorusValue=eval('document.form1.manurePhosphorusValue'+countReceived);
	
	if(manurePhosphorusType.value=="")
	{
		manurePhosphorusTerms.value="";
		manurePhosphorusValue.value="";
	}
	if(manurePhosphorusType.value=="1")
	{
		manurePhosphorusTerms.value="lb/t";
		manurePhosphorusValue.value="14";
	}
	if(manurePhosphorusType.value=="2")
	{
		manurePhosphorusTerms.value="lb/1000gal";
		manurePhosphorusValue.value="22";
	}
	if(manurePhosphorusType.value=="3")
	{
		manurePhosphorusTerms.value="lb/acre-inch";
		manurePhosphorusValue.value="50";
	}
	if(manurePhosphorusType.value=="4")
	{
		manurePhosphorusTerms.value="lb/1000gal";
		manurePhosphorusValue.value="40";
	}
	if(manurePhosphorusType.value=="5")
	{
		manurePhosphorusTerms.value="lb/t;"
		manurePhosphorusValue.value="12";
	}
	if(manurePhosphorusType.value=="6")
	{
		manurePhosphorusTerms.value="lb/t";
		manurePhosphorusValue.value="3";
	}
	if(manurePhosphorusType.value=="7")
	{
		manurePhosphorusTerms.value="lb/1000gal";
		manurePhosphorusValue.value="14";
	}
	if(manurePhosphorusType.value=="8")
	{
		manurePhosphorusTerms.value="lb/acre-inch";
		manurePhosphorusValue.value="30";
	}
	if(manurePhosphorusType.value=="9")
	{
		manurePhosphorusTerms.value="lb/1000gal";
		manurePhosphorusValue.value="21";
	}
	if(manurePhosphorusType.value=="10")
	{
		manurePhosphorusTerms.value="lb/ton";
		manurePhosphorusValue.value="6";
	}
	if(manurePhosphorusType.value=="11")
	{
		manurePhosphorusTerms.value="lb/1000gal";
		manurePhosphorusValue.value="54";
	}
	if(manurePhosphorusType.value=="12")
	{
		manurePhosphorusTerms.value="lb/acre-inch";
		manurePhosphorusValue.value="39";
	}
	if(manurePhosphorusType.value=="13")
	{
		manurePhosphorusTerms.value="lb/1000gal";
		manurePhosphorusValue.value="52";
	}
	if(manurePhosphorusType.value=="14")
	{
		manurePhosphorusTerms.value="lb/t";
		manurePhosphorusValue.value="31";
	}
	if(manurePhosphorusType.value=="15")
	{
		manurePhosphorusTerms.value="lb/1000 gal";
		manurePhosphorusValue.value="52";
	}
	if(manurePhosphorusType.value=="16")
	{
		manurePhosphorusTerms.value="lb/ton";
		manurePhosphorusValue.value="53";
	}
	if(manurePhosphorusType.value=="17")
	{
		manurePhosphorusTerms.value="lb/t";
		manurePhosphorusValue.value="50";
	}
}*/
function checkManureType(countReceived)
{
	manureType=eval('document.form1.manureType'+countReceived);
	manureTerms=eval('document.form1.manureTerms'+countReceived);
	manureOrganic=eval('document.form1.manureOrganic'+countReceived);
	manureAmmonium=eval('document.form1.manureAmmonium'+countReceived);
	manurePhosphorusValue=eval('document.form1.manurePhosphorusValue'+countReceived);
	manure=eval('document.getElementById("Manure")');
	
	if(manureType.value=="")
	{
	 document.getElementById("Manure").innerHTML = "";	
	}
	if(manureType.value=="1" || manureType.value=="5" || manureType.value=="6" || manureType.value=="10" || manureType.value=="14" || manureType.value=="16" || manureType.value=="17")
	{							   
	   var s="Tons/acre";
	   manureTerms.value=s;
	   manure.innerHTML = "(Tons/acre)";	
	}
	if(manureType.value=="3" || manureType.value=="8" || manureType.value=="12")
	{							   
	   var s="Acre-inches";
	   manureTerms.value=s;
	   manure.innerHTML = "(Acre-inches)";	
	}
	if(manureType.value=="2" || manureType.value=="4" || manureType.value=="7" || manureType.value=="9" || manureType.value=="11" || manureType.value=="13" || manureType.value=="15")
	{							   
	   var s="1000 gal./ac.";
	   manureTerms.value=s;
	   manure.innerHTML = "(1000 gal./ac.)";
	}
	if(manureType.value=="")
	{
	manureTerms.value="";
	manureOrganic.value="";
	manureAmmonium.value="";
	manurePhosphorusValue.value="";
	}
	if(manureType.value=="1")
	{
	 manureOrganic.value="10";
	 manureAmmonium.value="2";
	 manurePhosphorusValue.value="14";
	}
	if(manureType.value=="2")
	{
	 manureOrganic.value="14";
	 manureAmmonium.value="20";
	 manurePhosphorusValue.value="22";
	}
	if(manureType.value=="3")
	{
	 manureOrganic.value="10";
	 manureAmmonium.value="100";
	 manurePhosphorusValue.value="50";
	}
	if(manureType.value=="4")
	{
	 manureOrganic.value="42";
	 manureAmmonium.value="10";
	 manurePhosphorusValue.value="40";
	}
	if(manureType.value=="5")
	{
	 manureOrganic.value="11";
	 manureAmmonium.value="0";
	 manurePhosphorusValue.value="12";
	}
	if(manureType.value=="6")
	{
	 manureOrganic.value="8";
	 manureAmmonium.value="2";
	 manurePhosphorusValue.value="3";
	}
	if(manureType.value=="7")
	{
	 manureOrganic.value="9";
	 manureAmmonium.value="13";
	 manurePhosphorusValue.value="14";
	}
	if(manureType.value=="8")
	{
	 manureOrganic.value="18";
	 manureAmmonium.value="27";
	 manurePhosphorusValue.value="30";
	}
	if(manureType.value=="9")
	{
	 manureOrganic.value="17";
	 manureAmmonium.value="4";
	 manurePhosphorusValue.value="21";
	}
	if(manureType.value=="10")
	{
	 manureOrganic.value="8";
	 manureAmmonium.value="2";
	 manurePhosphorusValue.value="6";
	}
	if(manureType.value=="11")
	{
	 manureOrganic.value="33";
	 manureAmmonium.value="17";
	 manurePhosphorusValue.value="54";
	}
	if(manureType.value=="12")
	{
	 manureOrganic.value="29";
	 manureAmmonium.value="50";
	 manurePhosphorusValue.value="39";
	}
	if(manureType.value=="13")
	{
	 manureOrganic.value="19";
	 manureAmmonium.value="6";
	 manurePhosphorusValue.value="52";
	}
	if(manureType.value=="14")
	{
	 manureOrganic.value="14";
	 manureAmmonium.value="14";
	 manurePhosphorusValue.value="31";
	}
	if(manureType.value=="15")
	{
	 manureOrganic.value="37";
	 manureAmmonium.value="20";
	 manurePhosphorusValue.value="52";
	}
	if(manureType.value=="16")
	{
	 manureOrganic.value="12";
	 manureAmmonium.value="34";
	 manurePhosphorusValue.value="53";
	}
	if(manureType.value=="17")
	{
	 manureOrganic.value="8";
	 manureAmmonium.value="32";
	 manurePhosphorusValue.value="50";
	}
}

function checkLayer(countReceived,layerNumber)
{
	soilTexture=eval('document.form1.soilTexture'+countReceived);
	layerBottom=eval('document.form1.layer'+layerNumber+'Bottom'+countReceived);
	layerNitrate=eval('document.form1.layer'+layerNumber+'Nitrate'+countReceived);	
	
	if(!(soilTexture.value=="") || (layerBottom.value==""))
	{
	 if(soilTexture.value=="1")
	 {
	  if((parseFloat(layerBottom.value) >=0.0) && (parseFloat(layerBottom.value) <=12.0))
	  {
	   layerNitrate.value="6";
	  }
	  else if((parseFloat(layerBottom.value) >=12.0) && (parseFloat(layerBottom.value) <=24.0))
	  {
	   layerNitrate.value="3.5";
	  }
	  else if((parseFloat(layerBottom.value) >=24.0) && (parseFloat(layerBottom.value) <=48.0))
	  {
	   layerNitrate.value="2.5";
	  }
	 }
	 else if(soilTexture.value=="2")
	 {
	  if((parseFloat(layerBottom.value) >=0.0) && (parseFloat(layerBottom.value) <=12.0))
	  {
	   layerNitrate.value="3";
	  }
	  else if((parseFloat(layerBottom.value) >=12.0) && (parseFloat(layerBottom.value) <=24.0))
	  {
	   layerNitrate.value="1.5";
	  }
	  else if((parseFloat(layerBottom.value) >=24.0) && (parseFloat(layerBottom.value) <=48.0))
	  {
	   layerNitrate.value="1.5";
	  }
	 }
	}
}

function checkNitrateUnit(countReceived,layerNumber)
{
	nitrateUnit=eval('document.form1.nitrateUnit'+countReceived);
	nitrate=eval('document.getElementById("nitrate")');
	nitrate1=eval('document.getElementById("nitrate1")');
	nitrate2=eval('document.getElementById("nitrate2")');
	if(nitrateUnit.value=="")
	{
	   nitrate.innerHTML = "";
	   nitrate1.innerHTML = "";
	   nitrate2.innerHTML = "";					     		 
	}
	if(nitrateUnit.value=="1")
	{	
	 // alert("In here1"+nitrateUnit.value+":");							   
	   nitrate.innerHTML = "(ppm)";
	   nitrate1.innerHTML = "(ppm)";
	   nitrate2.innerHTML = "(ppm)";
	   //document.form1.getElementById("nitrate").innerHTML = "(ppm)";
	}
	else if(nitrateUnit.value=="2")
	{	
	  // alert("In here2"+nitrateUnit.value+":");						
	   nitrate.innerHTML = "(lb/acre)";
	   nitrate1.innerHTML = "(lb/acre)";
	   nitrate2.innerHTML = "(lb/acre)";
	  //document.form1.getElementById("nitrate").innerHTML = "(lb/acre)";
	}
}