function change_media() {
	var sbmBtn =document.getElementById('sumit_btn');
	var media1 =document.getElementById('vinil');
	var media2 =document.getElementById('mreja');
	var media3 =document.getElementById('folio');
	var media4 =document.getElementById('hartia');
	var sel = document.getElementById("media").value;

		if(sel == "0") {
			media1.style.display = 'none';
			media2.style.display = 'none';
			media3.style.display = 'none';
			media4.style.display = 'none';
			sbmBtn.disabled = true;
		}

		if(sel == "1") {
			media1.style.display = 'block';
			media2.style.display = 'none';
			media3.style.display = 'none';
			media4.style.display = 'none';
			sbmBtn.disabled = false;
		}
		if(sel == "2") {
			media1.style.display = 'none';
			media2.style.display = 'block';
			media3.style.display = 'none';
			media4.style.display = 'none';
			sbmBtn.disabled = false;
		}
		if(sel == "3") {
			media1.style.display = 'none';
			media2.style.display = 'none';
			media3.style.display = 'block';
			media4.style.display = 'none';
			sbmBtn.disabled = false;
		}
		if(sel == "4") {
			media1.style.display = 'none';
			media2.style.display = 'none';
			media3.style.display = 'none';
			media4.style.display = 'block';
			sbmBtn.disabled = false;
		}
		
}
function change_service() {
	var sel = document.getElementById("service").value;
	var media_selector =document.getElementById('media_sel');
	var sbmBtn =document.getElementById('sumit_btn');
	var riazane =document.getElementById('riazane');
	var media1 =document.getElementById('vinil');
	var media2 =document.getElementById('mreja');
	var media3 =document.getElementById('folio');
	var media4 =document.getElementById('hartia');
	var selected_media =document.getElementById('media').value;
	if(sel == "3"){
		media_selector.style.display = 'none';
		media1.style.display = 'none';
		media2.style.display = 'none';
		media3.style.display = 'none';
		media4.style.display = 'none';
		riazane.style.display = 'block';
		sbmBtn.disabled = false;
	} else {
		media_selector.style.display = 'block';
		riazane.style.display = 'none';
		if(selected_media == "0"){
			sbmBtn.disabled = true;
		}
	}

}

function dov_vinil() {
	var rad1 =document.getElementById('dovurshitelni_vinil1');
	var rad2 =document.getElementById('dovurshitelni_vinil2');
	var dov_layer = document.getElementById("dov_vinil");

		if(rad1.checked == true) {
			dov_layer.style.display = 'none';
		}
		if(rad2.checked == true) {	
			dov_layer.style.display = 'block';
		}
		
}
function dov_mreja() {
	var rad1 =document.getElementById('dovurshitelni_mreja1');
	var rad2 =document.getElementById('dovurshitelni_mreja2');
	var dov_layer = document.getElementById("dov_mreja");

		if(rad1.checked == true) {
			dov_layer.style.display = 'none';
		}
		if(rad2.checked == true) {	
			dov_layer.style.display = 'block';
		}
		
}
function dov_folio() {
	var rad1 =document.getElementById('dovurshitelni_folio1');
	var rad2 =document.getElementById('dovurshitelni_folio2');
	var dov_layer = document.getElementById("dov_folio");

		if(rad1.checked == true) {
			dov_layer.style.display = 'none';
		}
		if(rad2.checked == true) {	
			dov_layer.style.display = 'block';
		}
		
}
function dov_hartia() {
	var rad1 =document.getElementById('dovurshitelni_hartia1');
	var rad2 =document.getElementById('dovurshitelni_hartia2');
	var dov_layer = document.getElementById("dov_hartia");

		if(rad1.checked == true) {
			dov_layer.style.display = 'none';
		}
		if(rad2.checked == true) {	
			dov_layer.style.display = 'block';
		}
		
}
function dov_riazane() {
	var rad1 =document.getElementById('dovurshitelni_riazane1');
	var rad2 =document.getElementById('dovurshitelni_riazane2');
	var dov_layer = document.getElementById("dov_riazane");

		if(rad1.checked == true) {
			dov_layer.style.display = 'none';
		}
		if(rad2.checked == true) {	
			dov_layer.style.display = 'block';
		}
		
}

function DetailFormCheck() {
	var liceFld =document.getElementById('lice');
	var phoneFld =document.getElementById('phone');
	if (liceFld.value == "Вашето име"){
		alert("Полето 'Вашето име' е задължително!");
		liceFld.focus();
	}else
	if (phoneFld.value == "Телефон за връзка"){
		alert("Полето 'Телефон за връзка' е задължително!");
		phoneFld.focus();
	}else
		
	{ 
		document.detailsForm.submit();
	}
}