function parseFloatEx (inval){
	var prstr = 1/2;
	var trstr = prstr.toString();
	var decimsymb = trstr.substr(1, 1);
	var resstr = inval.toString();
	resstr = resstr.replace('.',decimsymb);
	resstr = resstr.replace(',',decimsymb);
	var info=document.getElementById('info_calc');
	if(info){info.innerHTML="&nbsp;<font color=green><b>parseFloatEx ok!</b></font> "};
	return(resstr);
}