function cal1()
{
	if(document.form1.txt11.value=="")
	{
	alert("Please Enter Diameter of Pipe");
	document.form1.txt11.focus();
	return false;
	}
	if(isNaN(document.form1.txt11.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt11.focus();
		return false;
	}

	if(document.form1.txt12.value=="")
	{
	alert("Please Enter Miles of Pipe");
	document.form1.txt12.focus();
	return false;
	}
	if(isNaN(document.form1.txt12.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt12.focus();
		return false;
	}
	if(document.form1.txt13.value=="")
	{
	alert("Please Enter Desired Pressure");
	document.form1.txt13.focus();
	return false;
	}
	if(isNaN(document.form1.txt13.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt13.focus();
		return false;
	}
	if(document.form1.txt14.value=="")
	{
	alert("Please Enter Desired Time Hour");
	document.form1.txt14.focus();
	return false;
	}
	if(isNaN(document.form1.txt14.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt14.focus();
		return false;
	}
	var res=0;
    n1 = parseFloat( document.form1.txt11.value );                    
    n2 = parseFloat( document.form1.txt12.value );                  
    n3 = parseFloat( document.form1.txt13.value );                  
    n4 = parseFloat( document.form1.txt14.value );                  
    res = (n1/2)*(n1/2)*3.141592654*n2*5280*12/1728*((n3)/14.7)/n4/60*1.176470588 ;    
	//document.form1.txt15.value=res;
	var num= parseFloat(res);
	document.form1.txt15.value=num.toFixed(4);
}
function cal2()
{
	if(document.form1.txt16.value=="")
	{
	alert("Please Enter Diameter of Pipe");
	document.form1.txt16.focus();
	return false;
	}
	if(isNaN(document.form1.txt16.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt16.focus();
		return false;
	}
	if(document.form1.txt17.value=="")
	{
	alert("Please Enter Miles of Pipe");
	document.form1.txt17.focus();
	return false;
	}
	if(isNaN(document.form1.txt17.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt17.focus();
		return false;
	}
	if(document.form1.txt18.value=="")
	{
	alert("Please Enter Head Pressure");
	document.form1.txt18.focus();
	return false;
	}
	if(isNaN(document.form1.txt18.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt18.focus();
		return false;
	}
	if(document.form1.txt19.value=="")
	{
	alert("Please Enter CFM Supplied");
	document.form1.txt19.focus();
	return false;
	}
	if(isNaN(document.form1.txt19.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt19.focus();
		return false;
	}
	var res=0;
    n1 = parseFloat( document.form1.txt16.value );                    
    n2 = parseFloat( document.form1.txt17.value );                  
    n3 = parseFloat( document.form1.txt18.value );                  
    n4 = parseFloat( document.form1.txt19.value );                  
    res = (n1/2)*(n1/2)*3.141592654*n2*5280*12/1728*((n3)/14.7)/((n4*0.85)*60) ;  
	
//	document.form1.txt110.value=res;
	var num= parseFloat(res);
	document.form1.txt110.value=num.toFixed(4);
}
function cal3()
{
	if(document.form1.txt111.value=="")
	{
	alert("Please Enter Diameter of Pipe");
	document.form1.txt111.focus();
	return false;
	}
	if(isNaN(document.form1.txt111.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt111.focus();
		return false;
	}
	if(document.form1.txt112.value=="")
	{
	alert("Please Enter Miles of Pipe");
	document.form1.txt112.focus();
	return false;
	}
	if(isNaN(document.form1.txt112.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt112.focus();
		return false;
	}
	if(document.form1.txt113.value=="")
	{
	alert("Please Enter Head Pressure");
	document.form1.txt113.focus();
	return false;
	}
	if(isNaN(document.form1.txt113.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt113.focus();
		return false;
	}
	if(document.form1.txt114.value=="")
	{
	alert("Please Enter Desired Speed");
	document.form1.txt114.focus();
	return false;
	}
	if(isNaN(document.form1.txt114.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt114.focus();
		return false;
	}
	var res=0;
    n1 = parseFloat( document.form1.txt111.value );                    
    n2 = parseFloat( document.form1.txt112.value );                  
    n3 = parseFloat( document.form1.txt113.value );                  
    n4 = parseFloat( document.form1.txt114.value );                  
    res = (n1/2)*(n1/2)*3.141592654*n2*5280*12/1728*((n3+5)/14.7)/(n2/n4)/60*1.176470588 ;  
	
//	document.form1.txt115.value=res;
	var num= parseFloat(res);
	document.form1.txt115.value=num.toFixed(4);
}
function cal4()
{
	if(document.form1.txt121.value=="")
	{
	alert("Please Enter Diameter of Pipe");
	document.form1.txt121.focus();
	return false;
	}
	if(isNaN(document.form1.txt121.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt121.focus();
		return false;
	}
	if(document.form1.txt122.value=="")
	{
	alert("Please Enter Miles of Pipe");
	document.form1.txt122.focus();
	return false;
	}
	if(isNaN(document.form1.txt122.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt122.focus();
		return false;
	}
	if(document.form1.txt123.value=="")
	{
	alert("Please Enter Head Pressure");
	document.form1.txt123.focus();
	return false;
	}
	if(isNaN(document.form1.txt123.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt123.focus();
		return false;
	}
	if(document.form1.txt124.value=="")
	{
	alert("Please Enter CFM Supplied");
	document.form1.txt124.focus();
	return false;
	}
	if(isNaN(document.form1.txt124.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt124.focus();
		return false;
	}
	var res=0;
    n1 = parseFloat( document.form1.txt121.value );                    
    n2 = parseFloat( document.form1.txt122.value );                  
    n3 = parseFloat( document.form1.txt123.value );                  
    n4 = parseFloat( document.form1.txt124.value );                  
    res = (n1/2)*(n1/2)*3.141592654*n2*5280*12/1728*((n3+5)/14.7)/((n4*0.85)*60) ;  
//	document.form1.txt125.value=res;
	var res1=parseFloat(n2/res)
//	document.form1.txt126.value=res1;
	var num= parseFloat(res);
	document.form1.txt125.value=num.toFixed(4);
	var num1= parseFloat(res1);
	document.form1.txt126.value=num1.toFixed(4);
}
function cal5()
{
	if(document.form1.txt127.value=="")
	{
	alert("Please Enter Diameter of Pipe");
	document.form1.txt127.focus();
	return false;
	}
	if(isNaN(document.form1.txt127.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt127.focus();
		return false;
	}
	if(document.form1.txt128.value=="")
	{
	alert("Please Enter Miles of Pipe");
	document.form1.txt128.focus();
	return false;
	}
	if(isNaN(document.form1.txt128.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt128.focus();
		return false;
	}
	if(document.form1.txt129.value=="")
	{
	alert("Please Enter Head Pressure");
	document.form1.txt129.focus();
	return false;
	}
	if(isNaN(document.form1.txt129.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt129.focus();
		return false;
	}
	if(document.form1.txt130.value=="")
	{
	alert("Please Enter Desired Speed");
	document.form1.txt130.focus();
	return false;
	}
	if(isNaN(document.form1.txt130.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt130.focus();
		return false;
	}
	var res=0;
    n1 = parseFloat( document.form1.txt127.value );                    
    n2 = parseFloat( document.form1.txt128.value );                  
    n3 = parseFloat( document.form1.txt129.value );                  
    n4 = parseFloat( document.form1.txt130.value );                  
    res = (n1/2)*(n1/2)*3.141592654*n2*5280*12/1728*((n3+8)/14.7)/(n2/n4)/60*1.176470588 ;
//	document.form1.txt131.value=res;
	var num= parseFloat(res);
	document.form1.txt131.value=num.toFixed(4);
}
function cal6()
{
	if(document.form1.txt132.value=="")
	{
	alert("Please Enter Diameter of Pipe");
	document.form1.txt132.focus();
	return false;
	}
	if(isNaN(document.form1.txt132.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt132.focus();
		return false;
	}
	if(document.form1.txt133.value=="")
	{
	alert("Please Enter Miles of Pipe");
	document.form1.txt133.focus();
	return false;
	}
	if(isNaN(document.form1.txt133.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt133.focus();
		return false;
	}
	if(document.form1.txt134.value=="")
	{
	alert("Please Enter Head Pressure");
	document.form1.txt134.focus();
	return false;
	}
	if(isNaN(document.form1.txt134.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt134.focus();
		return false;
	}
	if(document.form1.txt135.value=="")
	{
	alert("Please Enter CFM Supplied");
	document.form1.txt135.focus();
	return false;
	}
	if(isNaN(document.form1.txt135.value))
	{
		alert("Please Enter Numeric Value.");
		document.form1.txt135.focus();
		return false;
	}
	var res=0;
    n1 = parseFloat( document.form1.txt132.value );                    
    n2 = parseFloat( document.form1.txt133.value );                  
    n3 = parseFloat( document.form1.txt134.value );                  
    n4 = parseFloat( document.form1.txt135.value );                  
    res = (n1/2)*(n1/2)*3.141592654*n2*5280*12/1728*((n3+8)/14.7)/((n4*0.85)*60) ;  
//	document.form1.txt137.value=res;
	var num= parseFloat(res);
	document.form1.txt137.value=num.toFixed(4);
	var res1=parseFloat(n2/res)
//	document.form1.txt138.value=res1;
	var num1= parseFloat(res1);
	document.form1.txt138.value=num1.toFixed(4);
}
function can1()
{
	document.form1.txt11.value="";
	document.form1.txt12.value="";
	document.form1.txt13.value="";
	document.form1.txt14.value="";
	document.form1.txt15.value="";
}
function can2()
{
	document.form1.txt16.value="";
	document.form1.txt17.value="";
	document.form1.txt18.value="";
	document.form1.txt19.value="";
	document.form1.txt110.value="";
}
function can3()
{
	document.form1.txt111.value="";
	document.form1.txt112.value="";
	document.form1.txt113.value="";
	document.form1.txt114.value="";
	document.form1.txt115.value="";
}
function can4()
{
	document.form1.txt121.value="";
	document.form1.txt122.value="";
	document.form1.txt123.value="";
	document.form1.txt124.value="";
	document.form1.txt125.value="";
	document.form1.txt126.value="";
}
function can5()
{
	document.form1.txt127.value="";
	document.form1.txt128.value="";
	document.form1.txt129.value="";
	document.form1.txt130.value="";
	document.form1.txt131.value="";
}
function can6()
{
	document.form1.txt132.value="";
	document.form1.txt133.value="";
	document.form1.txt134.value="";
	document.form1.txt135.value="";
	document.form1.txt137.value="";
	document.form1.txt138.value="";
}