function esteIE()
	{
		var browser = navigator.appName;

		if(browser == "Microsoft Internet Explorer") 
			return true;
			
		return false;		
	}
function MakeObject() {
	var xmlhttp=false; 
        try {
                xmlhttp = new ActiveXObject('Msxml2.XMLHTTP'); 
        } catch (e) {
                try {
                        xmlhttp = new
                        ActiveXObject('Microsoft.XMLHTTP'); 
            } catch (E) {
                xmlhttp = false;
                        }
        }
        if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
                xmlhttp = new XMLHttpRequest(); 
        }
		return xmlhttp;
	}
	
	

function preia(param)
{
	var request=MakeObject();
	
	switch(param)
	{
		case "modele":
		{
	
	list = document.getElementById('alegemarca');
			id = list.value;
			request.open('get', 'returnant.php?tip=model&id=' + id);
			request.onreadystatechange = function () {
				
						if(request.readyState == 4)
					{ 
						
						var raspuns = request.responseText;	
				
						var c = document.getElementById('alegemodelul');
						
						if(esteIE() || (navigator.appName.indexOf("Opera") + 1))
						{
							c.outerHTML = '<select name="alegemodelul" id="alegemodelul">'+raspuns+'</select>';
						
						}
						else {
							c.innerHTML = raspuns;
						
						}
						
					} 
			}
			request.send(false);
			break;
			}
			
	   	case "dotari":
		{
	
	list = document.getElementById('modele');
			id = list.value;
			request.open('get', 'returnant.php?tip=dotari&id=' + id);
			request.onreadystatechange = function () {
				
						if(request.readyState == 4)
					{ 
						
						var raspuns = request.responseText;	
						var d = document.getElementById('div_dotari');
						if(esteIE() || (navigator.appName.indexOf("Opera") + 1))
						{
							d.outerHTML = '<div id="div_dotari">'+raspuns+'</div>';
						}
						else {
							d.innerHTML = raspuns;
						}
						
					} 
			}
			request.send(false);
			break;
			}			
			
	}	
}

function formula(dobanda)
{

	

var rate=dobanda/12;
var nper=document.getElementById('nrrate').value;
if (nper>72) {alert('Cel mult 72 de rate');document.getElementById('nrrate').value=72;nper=72;}

var credit=document.getElementById('credit').value;
var pv=credit*((1-document.getElementById('avans').value)*(-1));

var fv=document.getElementById('reziduala').value*credit;
var type=0;
var r = Math.pow(1 + rate, nper);
var pmt = (fv + pv * r) / (((1 + rate * type) * (1 - r) / rate));	
pmt=parseInt(pmt);	
	
	
	
	
	
	/*var credit=document.getElementById('credit').value;
	if (nrrate)
	{
		val=credit/nrrate;
	}
	else
	{
		val='Scrieti nr de rate';
	}*/
	
	var d=document.getElementById('valoarerata');
	
	if(esteIE() || (navigator.appName.indexOf("Opera") + 1))
						{
						d.outerHTML = '<div id="valoarerata">Rata lunara: '+pmt+'</div>';
						}
						else {
						
							d.innerHTML = 'Rata lunara: '+pmt;
						}
	
	
}