function showHTML(here, field)
{
	source=document.forms[0].elements[field].value;

	if(source=="")
	{
		source=" ";
	}
	
	document.getElementById(here).innerHTML=source;
	return 0;
}

function CheckForm(s)
{
	if ((s.email.value=='')||(s.email.value.lastIndexOf('@')==-1))
	{
		alert("Ошибка в поле e-mail");
		return false;
	}
	return true;
}

function show_hidden_div(elem)
{
	if (document.getElementById(elem).style.display == 'none')
		document.getElementById(elem).style.display = 'block';
	else
		document.getElementById(elem).style.display = 'none';
}

function hidden_div_except_choose(elem_tmpl, elem_choose, elem_count)
{
	for (i=0; i<elem_count; i++)
	{
		if (i!=elem_choose)
			document.getElementById(elem_tmpl+i).style.display = 'none';
	}
	show_hidden_div(elem_tmpl+elem_choose);	
}

function show_img(id)
{
   var posx = 0; 
   var posy = 0; 
   var margin = 10;
   
   if (!e) var e = window.event; 
   if (e.pageX || e.pageY) 
   { 
      posx = e.pageX; 
      posy = e.pageY; 
   } 
   else if (e.clientX || e.clientY) 
   { 
      posx = e.clientX + document.body.scrollLeft; 
      posy = e.clientY + document.body.scrollTop; 
   } 
	document.getElementById("book_img"+id).style.left = posx+margin;
	document.getElementById("book_img"+id).style.top = posy+margin;
	document.getElementById("book_img"+id).style.display = 'block';
}

function hide_img(id)
{
	document.getElementById("book_img"+id).style.display = 'none';
}

function move_img(id)
{
   var posx = 0; 
   var posy = 0; 
   var margin = 10;

   if (!e) var e = window.event; 
   if (e.pageX || e.pageY) 
   { 
      posx = e.pageX; 
      posy = e.pageY; 
   } 
   else if (e.clientX || e.clientY) 
   { 
      posx = e.clientX + document.body.scrollLeft; 
      posy = e.clientY + document.body.scrollTop; 
   } 
	document.getElementById("book_img"+id).style.left = posx+margin;
	document.getElementById("book_img"+id).style.top = posy+margin;
}

function show_img_complect(id)
{
   var posx = 0; 
   var posy = 0; 
   var margin = 10;

   if (!e) var e = window.event; 
   if (e.pageX || e.pageY) 
   { 
      posx = e.pageX; 
      posy = e.pageY; 
   } 
   else if (e.clientX || e.clientY) 
   { 
      posx = e.clientX + document.body.scrollLeft; 
      posy = e.clientY + document.body.scrollTop; 
   } 
	document.getElementById("book_complect"+id).style.left = posx+margin;
	document.getElementById("book_complect"+id).style.top = posy+margin;
	document.getElementById("book_complect"+id).style.display = 'block';
}

function hide_img_complect(id)
{
	document.getElementById("book_complect"+id).style.display = 'none';
}

function move_img_complect(id)
{
   var posx = 0; 
   var posy = 0; 
   var margin = 10;

   if (!e) var e = window.event; 
   if (e.pageX || e.pageY) 
   { 
      posx = e.pageX; 
      posy = e.pageY; 
   } 
   else if (e.clientX || e.clientY) 
   { 
      posx = e.clientX + document.body.scrollLeft; 
      posy = e.clientY + document.body.scrollTop; 
   } 
	document.getElementById("book_complect"+id).style.left = posx+margin;
	document.getElementById("book_complect"+id).style.top = posy+margin;
}