var check=true;
var fillfield='Please, fill the important field: ';
function back()
{
window.location.replace("index.php");
}
function submitform(form,action)
{
if (check==true)
{
eval('document.'+form+'.action="'+action+'"');		
eval('document.'+form+'.submit()');
}
check=true;
}
var sw = screen.width/2;
var sh = screen.height/2;
var img='';
var i=0;

function time_out(el,win)
{

wnd=window.open(el,win,'scrollbars=yes,width=600,height=600');
clearTimeout();
}
function newdoc(el,win)
{
el1=el;
win1=win;
time_out(el1,win1);
}
function closeWin()
{
//window.opener.location='calendar.php';
window.close();
}

function checkvalueint(param,form,start,end)
{
  str= eval('document.'+form+'.'+param+'.value');
  //if(str!="")
  //{
      flag=checkint(str);
      if ((flag==false)||(str<start)||(str>end))
      {
       alert("Incorrect value");
       eval('document.'+form+'.'+param+'.focus()');
       check=false;
      }
  //}
}
function checkint(str)
{
 n=parseInt(str);
 if (isNaN(n))
 {
     return false;}
 else
 {
 n="'"+n+"'";
 if ((n.length-2)!=str.length)
 {return false;}
 return true;
 }
}

function submitform(form,action)
{
if (check==true)
{
eval('document.'+form+'.action="'+action+'"');		
eval('document.'+form+'.submit()');
}
check=true;
}
function checkall(form,elem)
{
len=eval('document.'+form+'.elements.length');
	for(i=0;i<len;i++)
	{
		if(eval('document.'+form+'.elements['+i+'].type=="checkbox"'))
		{
			if(eval('document.'+form+'.'+elem+'.checked'))
			{
			eval('document.'+form+'.elements['+i+'].checked=true');
			}
			else
			{
			eval('document.'+form+'.elements['+i+'].checked=false');
			}
		}	
	}
}

function checkall2(form, obj, elem)
{
    if(!eval("document.forms['"+form+"'].elements['"+elem + "[]']")) return;
	len = eval("document.forms['"+form+"'].elements['"+elem + "[]'].length");
	if (len)
	{
	   for(i=0;i<len;i++)
	   {
		  if(obj.checked)
		  {
			 eval("document."+form+".elements['"+elem+"[]']["+i+"].checked=true");
		  }
		  else
		  {
			 eval("document."+form+".elements['"+elem+"[]']["+i+"].checked=false");
		  }
		}	
	}
	else
	{
		  if(obj.checked)
		  {
			 eval("document."+form+".elements['"+elem+"[]'].checked=true");
		  }
		  else
		  {
			 eval("document."+form+".elements['"+elem+"[]'].checked=false");
		  }
	}
}