var cursul_euro = 4.2688;
var __vehicle_age = [0, 1, 3, 6, 9, 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 9999999];
var __vehicle_cmc = [0, 3, 5, 8, 10, 13, 21, 28, 33, 38, 43, 49, 55, 61, 66, 73, 79, 84, 89, 93, 95];

var __reducere	  = 0;
var __old_value   = 0;
var __cmc 		  = [	[0, 1401], [1400, 1601], [1600, 2001], [2000, 2501], [2500, 3001], [3000, 100000]	];
var __europercmc  = [
[ 21 , 33 , 42  , 60  , 84  , 96 ],
[ 7  , 11  , 14   , 20  , 28  , 32 ],
[ 3.4  , 5.2  , 6.6 , 10   , 14   , 16  ],
[ 1.3 , 2    , 2.6 , 3.8 , 5 , 6  ],
[ 0.4  , 0.6  , 0.8 , 1.2 , 1.6 , 2  ]
			    ];
		    
var CO2					= [ [0, 121], [120, 151], [150, 181], [180, 211], [210, 241], [240, 271], [270, 10000] ]
var pretPerCO2			= [ 0		, 1				, 2		, 4			, 8			, 12		, 16 ];
		    
function calculate_taxe()
		    {	
var firstdate = new Date();
var today = new Date();
firstdate.setFullYear(document.getElementById('firstyear').value, parseInt(document.getElementById('firstmonth').value)-1,1);
														
oldness = monthsBetween(today,firstdate);
//alert(oldness);
tip_euros = parseInt(document.getElementById('norma').value)
    
emisieCO2 = document.getElementById("co2").value;
if ((tip_euros==3) && (tip_euros==4))
				{
if (!(IsNumeric(emisieCO2)))
			{
alert("Valoarea trebuie sa fie de tip numeric");
return false;
			}
		    }
//calculate deduction rate
if (oldness == 0)
		{
document.getElementById("cota_reducere").value = 0;
		    }
		else
	    {
for (i=0;i<__vehicle_age.length;i++)
			    {
		n = i+1;
			
if ((oldness > __vehicle_age[i]) && (oldness<= __vehicle_age[n]))
			{
__reducere = __vehicle_cmc[i+1];
document.getElementById("cota_reducere").value = __reducere;
break;
	    }
	}
	    }
	
cmc_nr		 = document.getElementById('capacitate').value;
		
if (cmc_nr!="")
																																																									{
																																																										if (IsNumeric(cmc_nr))
																																																											{
																																																												    __cmc_res = 0
																																																														for (i=0;i<__cmc.length;i++)
																																																															    {
																																																																	    min_e_cmc = __cmc[i][0];
																																																																			    max_e_cmc = __cmc[i][1];
																																																																					    if ((cmc_nr > min_e_cmc) && (cmc_nr < max_e_cmc))
																																																																								__cmc_res = i
																																																																									    }
																																																																											pret_pe_cmc = __europercmc[tip_euros][__cmc_res]
																																																																												    document.getElementById("cost_pe_cmc").value = pret_pe_cmc
																																																																														
																																																																															    if ((tip_euros!=3) && (tip_euros!=4))
																																																																																	{
																																																																																			__pret_in_euro = (cmc_nr * pret_pe_cmc * (100-__reducere))/100;
																																																																																					document.getElementById("nivco").value = "0";
																																																																																						    }
																																																																																								else
																																																																																									    {	
																																																																																											    myVal = 0;
																																																																																													    for (i=0;i<7;i++)
																																																																																															    {
																																																																																																		if ((emisieCO2 > CO2[i][0]) && (emisieCO2 < CO2[i][1]))
																																																																																																					myVal = pretPerCO2[i];
																																																																																																							}
																																																																																																									document.getElementById("nivco").value = myVal;
																																																																																																											val1 = emisieCO2 * myVal * (30/100);
																																																																																																													val2 = cmc_nr * pret_pe_cmc * (70/100);
																																																																																																															val3 = (100-__reducere)/100;
																																																																																																																	__pret_in_euro = (val1 + val2) * val3;
																																																																																																																		    }
																																																																																																																				if (document.getElementById("FP").checked)
																																																																																																																					    {
																																																																																																																							    __pret_in_euro = __pret_in_euro - (__pret_in_euro * 0.25);
																																																																																																																									}
																																																																																																																										    
																																																																																																																												document.getElementById("preteuro").value = (__pret_in_euro).toFixed(2)
																																																																																																																													    document.getElementById("pretron").value = (__pret_in_euro * cursul_euro).toFixed(2)
																																																																																																																														
																																																																																																																															    __old_value = cmc_nr
																																																																																																																																    }
																																																																																																																																	    else
																																																																																																																																			document.getElementById('capacitate').value = __old_value
																																																																																																																																			    }
																																																																																																																																			    }
																																																																																																																																			    
																																																																																																																																			    
																																																																																																																																			    
																																																																																																																																			    // cmc = capacitate cilindrica
																																																																																																																																			    
																																																																																																																																			    
																																																																																																																																			    
																																																																																																																																			    
																																																																																																																																			    
																																																																																																																																			    function IsNumeric(strString)
																																																																																																																																			    {
																																																																																																																																				var strValidChars = "0123456789";
																																																																																																																																				    var strChar;
																																																																																																																																					var blnResult = true;
																																																																																																																																					
																																																																																																																																					    if (strString.length == 0)
																																																																																																																																						    return false;
																																																																																																																																						    
																																																																																																																																							for (i = 0; i < strString.length && blnResult == true; i++)
																																																																																																																																							    {
																																																																																																																																								    strChar = strString.charAt(i);
																																																																																																																																									    if (strValidChars.indexOf(strChar) == -1)
																																																																																																																																											blnResult = false;
																																																																																																																																											    }
																																																																																																																																												return blnResult;
																																																																																																																																												}
																																																																																																																																												
																																																																																																																																												function monthsBetween(thisDate, thatDate) 
																																																																																																																																												{
																																																																																																																																												  if (thisDate> thatDate) {
																																																																																																																																												       return monthsBetween(thatDate, thisDate);
																																																																																																																																												          }
																																																																																																																																												            var number = 0;
																																																																																																																																												              if (thatDate.getFullYear()> thisDate.getFullYear()) {
																																																																																																																																												                   number = number + (thatDate.getFullYear() - thisDate.getFullYear() - 1) * 12;
																																																																																																																																												                   
																																																																																																																																												                         } else {
																																																																																																																																												                         
																																																																																																																																												                               return thatDate.getMonth() - thisDate.getMonth();
																																																																																																																																												                               
																																																																																																																																												                                     }
																																																																																																																																												                                        if (thatDate.getMonth()> thisDate.getMonth()) {
																																																																																																																																												                                              number = number + 12 + thatDate.getMonth() - thisDate.getMonth();
																																																																																																																																												                                                  } else {
																																																																																																																																												                                                        number = number + (12 - thisDate.getMonth()) + thatDate.getMonth();
																																																																																																																																												                                                              }
																																																																																																																																												                                                                  return number;
																																																																																																																																												                                                                      }