function verifica_cod_captcha(cod_c)
{

xmlHttp=GetXmlHttpObject()

if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}

var url="/root/captcha.php"
url=url+"?cod_c="+cod_c


xmlHttp.onreadystatechange=stateChanged_captcha
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}

function stateChanged_captcha()
{

	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{

		document.getElementById("id_submit_captcha").innerHTML=xmlHttp.responseText
		if(xmlHttp.responseText != 'Codul introdus nu este corect') {
	             document.getElementById('input_ok').style.display='none';
       }
	}
}


/////////////////////////


function change_cod_captcha(width, height, characters)
{

document.getElementById("div_captcha").innerHTML= '<img  src="/root/captcha.php?width='+width+'&amp;height='+height+'&amp;characters='+characters+'&amp;seteaza_cod='+Math.floor(Math.random()*11)+'" alt="" />'
}



function GetXmlHttpObject()
{
var objXMLHttp=null
if (window.XMLHttpRequest)
{
objXMLHttp=new XMLHttpRequest()
}
else if (window.ActiveXObject)
{
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
}
return objXMLHttp
}