/////////////////////////////////////
//      Copyright by Net-Admin      //
//          www.net-admin.ru           //
/////////////////////////////////////

					var checked = new Image();
					var unchecked = new Image();

					checked.src = 'data/netadmin/calc/ch_box_un.gif';
					unchecked.src = 'data/netadmin/calc/ch_box.gif';

					function SwitchImage1() {
							if (document.getElementById('my_check1').checked == true) {
					document.getElementById('my_check1').checked = false;
					document['check_image1'].src = unchecked.src;
							} else {
					document.getElementById('my_check1').checked = true;
					document['check_image1'].src = checked.src;
							}
						}

					function SwitchImage2() {
							if (document.getElementById('my_check2').checked == true) {
					document.getElementById('my_check2').checked = false;
					document['check_image2'].src = unchecked.src;
					document.getElementById("cbase").value = '0';
							} else {
					document.getElementById('my_check2').checked = true;
					document['check_image2'].src = checked.src;
					
							}
			
					document.getElementById('holla').style.display = (document.getElementById('holla').style.display == 'none') ? 'block' : 'none';
			
						}

					function SwitchImage3() {
						if (document.getElementById('my_check3').checked == true) {
					document.getElementById('my_check3').checked = false;
					document['check_image3'].src = unchecked.src;
						} else {
					document.getElementById('my_check3').checked = true;
					document['check_image3'].src = checked.src;
						}
					}


					function calculation() {
					var klrst = Number(document.getElementById("arm").value) * 1150;
					var klwinsrv = Number(document.getElementById("winsrv").value * 3100);
					var klunixsrv = Number(document.getElementById("unixsrv").value * 4100);
					var klbaseodins = Number(document.getElementById("cbase").value * 1900);
					var ats;
					var buhpo;
					var promitog = klrst + klwinsrv + klunixsrv + klbaseodins;
					var atsitog;
					var buhpoitog;
					
					if (document.Calculator.ch1.checked) ats = 3000;
					else ats = 0 ; 
					
					if (document.Calculator.ch3.checked) buhpo =  2000;
					else buhpo = 0;
					
					if (document.Calculator.ch1.checked  && promitog == 0) atsitog = 0 ;
					else atsitog = 0;
					
					if (document.Calculator.ch3.checked && promitog == 0) buhpoitog = 0 ;
					else buhpoitog = 0;
	
					var fixitogsnds = ( promitog + ats + atsitog + buhpo + buhpoitog) / 1.18;
					var fixnds = (promitog  + ats + atsitog + buhpo + buhpoitog) - ((promitog + ats + atsitog + buhpo + buhpoitog) / 1.18 );
					var fixitog = promitog  + ats + atsitog + buhpo + buhpoitog;
					
					if (isNaN(fixnds,fixitogsnds,fixitog))
							return alert('Ошибка ввода информации\nПроверьте правильность заполнения формы');

					
					document.Calculator.itog.value = fixitogsnds.toFixed(2);
					document.Calculator.nds.value =  fixnds.toFixed(2);
					document.Calculator.itognds.value =  fixitog.toFixed(2); 
					}
					

					function plusonea () {
						if (document.Calculator.arm.value<999)
					++document.Calculator.arm.value; 
					} 
					
					function plusonew () {
						if (document.Calculator.winsrv.value<999) 
					++document.Calculator.winsrv.value;
					} 
					
					function plusoneu () {
						if (document.Calculator.unixsrv.value<999)
					++document.Calculator.unixsrv.value; 
					} 
					
					function plusonec () {
						if (document.Calculator.cbase.value<999)
					++document.Calculator.cbase.value; 
					} 
					
					function minusonea () {
						if (document.Calculator.arm.value>0)
					--document.Calculator.arm.value; 
					} 
					
					function minusonew () {
						if (document.Calculator.winsrv.value>0)
					--document.Calculator.winsrv.value; 
					} 
					
					function minusoneu () {
						if (document.Calculator.unixsrv.value>0)
					--document.Calculator.unixsrv.value; 
					} 
					
					function minusonec () {
						if (document.Calculator.cbase.value>0)
					--document.Calculator.cbase.value; 
					}