function Block()
{
	var CheckBox = document.getElementById ("rules");
	var SessionSubmit = document.getElementById ("submit");
	if (!CheckBox || !SessionSubmit) return;
	SessionSubmit.disabled = !CheckBox.checked;
}

var items = 1;
var imagese = 1;

function AddAuthor(author_count) {
var max_a = 10;
max_author = max_a - author_count + 1;
  div=document.getElementById("items");
  button=document.getElementById("add");
  itemq = items + author_count;
  items++;
  newitem="<input type=\"text\" name=\"author_" + itemq + "\" size=\"45\">";
if(items <= max_author) {  
	newnode=document.createElement("div");
	newnode.innerHTML=newitem; div.insertBefore(newnode,button);
  }
}

function AddImages() {
var max_i = 10;
  dive=document.getElementById("imagese");
  buttone=document.getElementById("add");
  imagese++;
  newiteme="<input type=\"file\" name=\"image_" + imagese + "\">";
if(imagese <= max_i) {  
	newnodee=document.createElement("dive");
	newnodee.innerHTML=newiteme; dive.insertBefore(newnodee,buttone);
  }
}