function setExperimentalDefault(objStandard_a, objStandard_b, objExperimental_a, objExperimental_b)
{
	if (((document.getElementById(objStandard_a).value).length != 0) && ((document.getElementById(objStandard_b).value).length != 0) && ((document.getElementById(objExperimental_a).value).length == 0) && ((document.getElementById(objExperimental_b).value).length == 0))
	{
		var a = parseFloat(document.getElementById(objStandard_a).value);
		var b = parseFloat(document.getElementById(objStandard_b).value);
	
		if (a > 0 && b > 0 && !isNaN(a) && !isNaN(b))
		{
			var experimental_a = Math.round(2*a/(a+b)*1000)/1000; 
			var experimental_b = Math.round(2*b/(a+b)*1000)/1000; 
		
			document.getElementById(objExperimental_a).value = String(experimental_a);
			document.getElementById(objExperimental_b).value = String(experimental_b);
		}
	}
}