01	function calc() {
02	    
03	 var type_host = document.getElementById("type_host");  
04	 var seo = document.getElementById("seo"); 
05	 var comment = document.getElementById("comment");
06	 var gallery = document.getElementById("gallery");
07	 var eshop = document.getElementById("eshop");
08	   
09	 var result = document.getElementById("type_host"); 
10	 var result = document.getElementById("seo");
11	 var result = document.getElementById("comment");
12	 var result = document.getElementById("gallery");
13	 var result = document.getElementById("eshop"); 
14	 var result = document.getElementById("result");
15	 
16	 var price_host = 0;
17	 var price_seo = 0;
18	 var price_comment = 0;
19	 var price_gallery = 0;
20	 var price_eshop = 0;
21	 var price = 0;
22	 price_host += (type_host.checked == true) ? parseInt(type_host.value) : 0;
23	 price_seo += (seo.checked == true) ? parseInt(seo.value) : 0;
24	 price_comment += (comment.checked == true) ? parseInt(comment.value) : 0;
25	 price_gallery += (gallery.checked == true) ? parseInt(gallery.value) : 0;
26	 price_eshop += (eshop.checked == true) ? parseInt(eshop.value) : 0;
27	 price=price_host+price_seo + price_comment + price_gallery + price_eshop;
28	  
29	 result_host.innerHTML = price_host;
30	 result_seo.innerHTML = price_seo;
31	 result_comment.innerHTML = price_comment;
32	 result_gallery.innerHTML = price_gallery;
33	 result_eshop.innerHTML = price_eshop;
34	 result.innerHTML = price;
35	 }

1	var textarea = document.getElementsByName("comments")[0];
2	        var counter = document.getElementById("counter");
3	        textarea.onkeyup = function(s) {
4	            counter.innerHTML = this.value.split(/ +(?:\S)/).length;
5	        }

01	<td width="20px"><input type="checkbox" onchange="calc()" value="350" id="type_host" /></td>
02	 <td width="60px"></td>
03	<td width="100px"><span id="result_host">0</span> руб.</td>
04	 
05	<td width="20px"><input type="checkbox" onchange="calc()" value="300" id="seo" /></td>
06	 <td width="60px"></td>
07	<td width="100px"><span id="result_seo">0</span> руб.</td>
08	 </tr>
09	  
10	 <tr>
11	<td width="20px"><input type="checkbox" onchange="calc()" value="300" id="comment" /></td>
12	 <td width="60px"></td>
13	<td width="100px"><span id="result_comment">0</span> руб.</td>
14	 
15	<td width="20px"><input type="checkbox" onchange="calc()" value="300" id="gallery" /></td>
16	 <td width="60px"></td>
17	<td width="100px"><span id="result_gallery">0</span> руб.</td>
18	 </tr>
19	 
20	 <tr>
21	<td width="20px"><input type="checkbox" onchange="calc()" value="200" id="eshop" /></td>
22	 <td width="60px"></td>
23	<td width="100px"><span id="result_eshop">0</span> руб.</td>
24	<td width="20px"></td>
25	 <td width="60px"></td>
26	<td width="100px"></td>
27	 </tr>
28	   <tr>
29	 <td colspan="6" align="center"><h3>Введите текст:</h3></td>
30	 </tr>
31	  
32	 <tr>
33	 <td colspan="5"><textarea name="comments" onchange="calc()" value="0"  cols="38" rows="7"></textarea></td>
34	    <td>Введено слов: <span id="counter">0</span></td></tr>
35	    <tr><td colspan="6"><center><input type="submit" value="Отправить">&nbsp;&nbsp;<input type="reset" value="Очистить"></center></td>
36	</tr>
37	 
38	 
39	 <tr>
40	 <td width="80" colspan="2" class="td_result">ИТОГО:</td>
41	 <td width="120" colspan="2"></td>
42	 <td width="160" class="td_result" colspan="2"><span id="result">0</span> руб.</td>
43	 </tr>

	function calc() {
	    
	 var type_host = document.getElementById("type_host");  
	 var seo = document.getElementById("seo"); 
	 var comment = document.getElementById("comment");
	 var gallery = document.getElementById("gallery");
	 var eshop = document.getElementById("eshop");
	   
	 var result = document.getElementById("result");
	 
	 var price_host = 350;
	 var price_seo = 300;                                                       
	 var price_comment = 300;
	 var price_gallery = 300;                                                   
	 var price_eshop = 300;                                                     
	 var price = 200;
         result_host.innerHTML = parseInt(type_host.value);
	 result_seo.innerHTML = parseInt(seo.value);
	 result_comment.innerHTML =  parseInt(comment.value);
         result_gallery.innerHTML = parseInt(gallery.value);
	 result_eshop.innerHTML =  parseInt(eshop.value);
	 result.innerHTML=price_host+price_seo + price_comment + price_gallery + price_eshop;
}