<!-- hide script from ols browsers
//Made by Vijay Bhagwandas, Lenntech BV
function Re()	
{
	var Rey = document.reynolds.Rey.value
	var rho = document.reynolds.rho.value
	var v = document.reynolds.v.value
	var D = document.reynolds.D.value
	var eta = document.reynolds.eta.value
	
	if(rho == "" || v == "" || D == "" || eta =="")
		return;
	document.reynolds.Rey.value = (rho*v*D/eta).toFixed(2)
	if(document.reynolds.Rey.value < 2500){
		document.reynolds.turlam.value = "lamminair"
	}
	else{
		document.reynolds.turlam.value = "turbulent"
	}
}

function lambda()
{
	var lambda 
	var eps = document.reynolds.eps.value
	var D = document.reynolds.D.value
	if(eps != "")
	{
		return lambda = 1/(Math.pow(-2*(Math.log((0.269*eps/D) + 5.74/Math.pow(document.reynolds.Rey.value,0.901))/Math.log(10)),2))
	}
}

function stroming()
{
	Re()
	var L = document.reynolds.L.value
	var D = document.reynolds.D.value
	var rho = document.reynolds.rho.value
	var v = document.reynolds.v.value
	var p = document.reynolds.p.value
	var eps = document.reynolds.eps.value

	if(L == "")
		return;
	
	if(document.reynolds.Rey.value < 2500){
		document.reynolds.p.value = (64*L*rho*Math.pow(v,2)/(document.reynolds.Rey.value*2*D)).toFixed(2)
	}
	else{
		if(eps == ""){alert("epsilon??")}else{
		document.reynolds.p.value = (lambda()*L*rho*Math.pow(v,2)/(2*D)).toFixed(2)}
	}
}
// end hiding -->