function carea(de, para)
{
	if (convert_0.value == '')
	{
		alert('Informe a Quantidade a ser Convertida.');
		convert_0.focus();
	}
	else if (isNaN(convert_0.value))
	{
		alert('Quantidade Inválida.');
		convert_0.value = '';
		convert_0.focus();
	}	
	else if (de.value == '')
	{
		alert('Informe a Unidade.');
		de.focus();
	}
	else if (para.value == '')
	{
		alert('Informe a Unidade a ser Convertida.');
		para.focus();
	}
	else
	{
		newt1 = convert_0.value;
	
		if(de.selectedIndex == 1) {newt1 *= 4046900000;}
		if(de.selectedIndex == 2) {newt1 *= 100;}		
		if(de.selectedIndex == 3) {newt1 *= 92900;}
		if(de.selectedIndex == 4) {newt1 *= 10000000000;}
		if(de.selectedIndex == 5) {newt1 *= 645.16;}
		if(de.selectedIndex == 6) {newt1 *= 1000000000000;}
		if(de.selectedIndex == 7) {newt1 *= 1000000;}
		if(de.selectedIndex == 8) {newt1 *= 2590000000000;}
		if(de.selectedIndex == 9) {newt1 *= 1;}
		if(de.selectedIndex == 10){newt1 *= 836100;}
			
		if(para.selectedIndex == 1) {newt1 /= 4046900000;}
		if(para.selectedIndex == 2) {newt1 /= 100;}
		if(para.selectedIndex == 3) {newt1 /= 92900;}
		if(para.selectedIndex == 4) {newt1 /= 10000000000;}
		if(para.selectedIndex == 5) {newt1 /= 645.16;}
		if(para.selectedIndex == 6) {newt1 /= 1000000000000;}
		if(para.selectedIndex == 7) {newt1 /= 1000000;}
		if(para.selectedIndex == 8) {newt1 /= 2590000000000;}
		if(para.selectedIndex == 9) {newt1 /= 1;}
		if(para.selectedIndex == 10){newt1 /= 836100;}

		fnewt1 = reducedec(newt1);
		result_0.value = fnewt1;
	}
}

function clength(de, para)
{
	if (convert_1.value == '')
	{
		alert('Informe a Quantidade a ser Convertida.');
		convert_1.focus();
	}
	else if (isNaN(convert_1.value))
	{
		alert('Quantidade Inválida.');
		convert_1.value = '';
		convert_1.focus();
	}	
	else if (de.value == '')
	{
		alert('Informe a Unidade.');
		de.focus();
	}
	else if (para.value == '')
	{
		alert('Informe a Unidade a ser Convertida.');
		para.focus();
	}
	else
	{	
		newt1 = convert_1.value;
		 
		if(de.selectedIndex == 1) {newt1 *= 10;}
		if(de.selectedIndex == 2) {newt1 *= 304.8;}		
		if(de.selectedIndex == 3) {newt1 *= 25.4;}
		if(de.selectedIndex == 4) {newt1 *= 1000000;}
		if(de.selectedIndex == 5) {newt1 *= 1000;}
		if(de.selectedIndex == 6) {newt1 *= 1609300;}
		if(de.selectedIndex == 7) {newt1 *= 1;}
		if(de.selectedIndex == 8) {newt1 *= 914.4;}
			
		if(para.selectedIndex == 1) {newt1 /= 10;}
		if(para.selectedIndex == 2) {newt1 /= 304.8;}
		if(para.selectedIndex == 3) {newt1 /= 25.4;}
		if(para.selectedIndex == 4) {newt1 /= 1000000;}
		if(para.selectedIndex == 5) {newt1 /= 1000;}
		if(para.selectedIndex == 6) {newt1/= 1609300;}
		if(para.selectedIndex == 7) {newt1 /= 1;}
		if(para.selectedIndex == 8) {newt1 /= 914.4;}
	
		fnewt1 = reducedec(newt1);
		result_1.value = fnewt1;
	}
}

function cweight(de, para)
{
	if (convert_2.value == '')
	{
		alert('Informe a Quantidade a ser Convertida.');
		convert_2.focus();
	}
	else if (isNaN(convert_0.value))
	{
		alert('Quantidade Inválida.');
		convert_2.value = '';
		convert_2.focus();
	}	
	else if (de.value == '')
	{
		alert('Informe a Unidade.');
		de.focus();
	}
	else if (para.value == '')
	{
		alert('Informe a Unidade a ser Convertida.');
		para.focus();
	}
	else
	{		
		newt1 = convert_2.value;
		
		if(de.selectedIndex == 1) {newt1 /= 0.0154;}
		if(de.selectedIndex == 2) {newt1 *= 1000;}		
		if(de.selectedIndex == 3) {newt1 *= 50802000000;}
		if(de.selectedIndex == 4) {newt1 *= 1016046909;}
		if(de.selectedIndex == 5) {newt1 *= 1000000;}
		if(de.selectedIndex == 6) {newt1 *= 1000000000;}
		if(de.selectedIndex == 7) {newt1 *= 1;}
		if(de.selectedIndex == 8) {newt1 *= 28350;}
		if(de.selectedIndex == 9) {newt1 *= 453600;}
		if(de.selectedIndex == 10) {newt1 *= 6350300;}
		
		if(para.selectedIndex == 1) {newt1 *= 0.0154;}
		if(para.selectedIndex == 2) {newt1 /= 1000;}
		if(para.selectedIndex == 3) {newt1 /= 50802000000;}	
		if(para.selectedIndex == 4) {newt1 /= 1016046909;}
		if(para.selectedIndex == 5) {newt1 /= 1000000;}
		if(para.selectedIndex == 6) {newt1 /= 1000000000;}
		if(para.selectedIndex == 7) {newt1 /= 1;}
		if(para.selectedIndex == 8) {newt1 /= 28350;}
		if(para.selectedIndex == 9) {newt1 /= 453600;}
		if(para.selectedIndex == 10) {newt1 /= 6350300;}
	
		fnewt1 = reducedec(newt1);
		result_2.value = fnewt1;
	}
}

function cvol(de, para)
{
	if (convert_3.value == '')
	{
		alert('Informe a Quantidade a ser Convertida.');
		convert_3.focus();
	}
	else if (isNaN(convert_3.value))
	{
		alert('Quantidade Inválida.');
		convert_3.value = '';
		convert_3.focus();
	}	
	else if (de.value == '')
	{
		alert('Informe a Unidade.');
		de.focus();
	}
	else if (para.value == '')
	{
		alert('Informe a Unidade a ser Convertida.');
		para.focus();
	}
	else
	{		
		newt1 = convert_3.value;
		
		if(de.selectedIndex == 1) {newt1 *= 1000;}
		if(de.selectedIndex == 2) {newt1 *= 1000000;}		
		if(de.selectedIndex == 3) {newt1 *= 28300000;}
		if(de.selectedIndex == 4) {newt1 *= 100000000;}
		if(de.selectedIndex == 5) {newt1 *= 16387;}
		if(de.selectedIndex == 6) {newt1 *= 1000000;}
		if(de.selectedIndex == 7) {newt1 *= 1000000000;}
		if(de.selectedIndex == 8) {newt1 *= 1000;}
		if(de.selectedIndex == 9) {newt1 *= 1;}
		if(de.selectedIndex == 10){newt1 *= 29574;}
		if(de.selectedIndex == 11){newt1 *= 4546100;}
		if(de.selectedIndex == 12){newt1 *= 568300;}
		if(de.selectedIndex == 13){newt1 *= 29574;}
		if(de.selectedIndex == 14){newt1 *= 3785400;}
		if(de.selectedIndex == 15){newt1 *= 473100;}
	
		if(para.selectedIndex == 1) {newt1 /= 1000;}
		if(para.selectedIndex == 2) {newt1 /= 1000000;}		
		if(para.selectedIndex == 3) {newt1 /= 28300000;}
		if(para.selectedIndex == 4) {newt1 /= 100000000;}
		if(para.selectedIndex == 5) {newt1 /= 16387;}
		if(para.selectedIndex == 6) {newt1 /= 1000000;}
		if(para.selectedIndex == 7) {newt1 /= 1000000000;}
		if(para.selectedIndex == 8) {newt1 /= 1000;}
		if(para.selectedIndex == 9) {newt1 /= 1;}
		if(para.selectedIndex == 10) {newt1 /= 29574;}
		if(para.selectedIndex == 11){newt1 /= 4546100;}
		if(para.selectedIndex == 12){newt1 /= 568300;}
		if(para.selectedIndex == 13){newt1 /= 29574;}
		if(para.selectedIndex == 14){newt1 /= 3785400;}
		if(para.selectedIndex == 15){newt1 /= 473100;}
	
		fnewt1 = reducedec(newt1);
		result_3.value = fnewt1;
	}
}

function reducedec(newt1){

	strn = newt1.toString();
	if(strn.indexOf(".") != -1)
	{ 
		io = strn.indexOf(".");
		strn4 = strn.substring(io, (io+5));
		ent = strn.substring(0,io);
		fnewt1 = ent+strn4;
		if(fnewt1.indexOf(".") == 0)fnewt1 = "0"+fnewt1;
	}
	else {fnewt1 = newt1;}
		return fnewt1;
}