var last_image=false;
var last_image_small=false;
var	last_image_small_width=false;
var	last_image_small_height=false;

function checkForm() {
	if (document.getElementById('name').value=="") {
		alert ('Введите, пожалуйста, своё имя!');
		return false;		
	} else if ($('email').value=="") {
		alert ('Введите, пожалуйста, свой email!');
		return false;
	}  else {
		return true;		
	}	
}

function showVideo(key) {
	document.getElementById('video_'+key).style.display="";
	document.getElementById('close_'+key).style.display="";
	document.getElementById('play_'+key).style.display="none";
	document.getElementById('videoimage_'+key).style.display="none";
	document.getElementById('anons_'+key).style.width="465px";
	document.getElementById('firsttext_'+key).style.display="none";
	document.location="#"+key;
	return false;
}

function closeVideo(key) {
	var buf=document.getElementById('video_'+key).innerHTML;
	document.getElementById('video_'+key).innerHTML="";
	document.getElementById('video_'+key).innerHTML=buf;
	document.getElementById('video_'+key).style.display="none";
	document.getElementById('close_'+key).style.display="none";
	document.getElementById('play_'+key).style.display="";
	document.getElementById('videoimage_'+key).style.display="";
	document.getElementById('anons_'+key).style.width="345px";
	document.getElementById('firsttext_'+key).style.display="";
	document.location="#";
	return false;
}

function showHideCats(link,id) {
	if (document.getElementById('cats_'+id).style.display=="") {
		document.getElementById('cats_'+id).style.display="none";
		link.innerHTML=link.innerHTML.replace(":"," ...");
	} else {
		document.getElementById('cats_'+id).style.display="";
		link.innerHTML=link.innerHTML.replace(" ...",":");
	}
	return false;
}

function showBigSmallImage (id, big, small, big_width, big_height,small_width,small_height) {
	var img=document.getElementById('image_'+id);

	if (img.src.indexOf(big)!=-1) {
		img.src=small;
		img.width=small_width;
		img.height=small_height;
	} else {
		img.src=big;
		img.width=big_width;
		img.height=big_height;		
	}
	
	if (last_image && last_image!=img) {
		last_image.src=last_image_small;
		last_image.width=last_image_small_width;
		last_image.height=last_image_small_height;
	} 
	last_image=img;
	last_image_small=small;
	last_image_small_width=small_width;
	last_image_small_height=small_height;
	
	return false;
}

function textInInput (inp,Focus) {
	if (Focus) {
		if (inp.value==inp.defaultValue) 
			inp.value="";
	} else {
		if (inp.value=="") 
			inp.value=inp.defaultValue;
	}
}

function Subscribe (form) {
	var ret=true;

	if (document.getElementById('sub_email').value=="" || document.getElementById('sub_email').value==document.getElementById('sub_email').defaultValue || document.getElementById('sub_email').value.indexOf('@')<2 ) {
		alert ('Введите, пожалуйста, свой Email');
		ret=false;		
		return false;
	} 
	
	if (document.getElementById('subscriber_type2').checked && (document.getElementById('sub_name').value=="" || document.getElementById('sub_name').value==document.getElementById('sub_name').defaultValue)){
		alert ('Введите, пожалуйста, своё Имя');
		ret=false;		
		return false;		
	}
	
	if (document.getElementById('subscriber_type1').checked) {
		document.subscriber_form.action="http://subscribe.ru/member/quick";
	} else {
		document.subscriber_form.action="/subscriber_ru/";
	}

	if (ret) {
		if (document.getElementById('sub_surname').value==document.getElementById('sub_surname').defaultValue)
			document.getElementById('sub_surname').value="";
		if (document.getElementById('sub_name').value==document.getElementById('sub_name').defaultValue)
			document.getElementById('sub_name').value="";

	}
	
	return ret;
}