function pop_up(link, height, width)
{
window.open(link,'','height='+height+',width='+width+',toolbar=no,menubar=no,location=no,status=no');
}

function pop_up_scroll(link, height, width)
{
window.open(link,'','height='+height+',width='+width+',scrollbars=yes,toolbar=no,menubar=no,location=no,status=no');
}

function value(object)
	{
	var i;
	for(i=0;i<object.length;i++)
		{
		if(object[i].checked)
			break;
		}
	return object[i].value;
	}

function printarcticle(id)
{
//pop_up(
}

//funcion que checkea un email.
function emailCheck (emailStr) 
{
var emailPat=/^(.+)@(.+)$/
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
var validChars="\[^\\s" + specialChars + "\]"
var quotedUser="(\"[^\"]*\")"
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
var atom=validChars + '+'
var word="(" + atom + "|" + quotedUser + ")"
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
	return false
}
var user=matchArray[1]
var domain=matchArray[2]
if (user.match(userPat)==null) {
    return false
}
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
		return false
	    }
    }
    return true
}

var domainArray=domain.match(domainPat)
if (domainArray==null) {
	return false
}
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   return false
}
if (len<2) {
   return false
}
return true;
}

//trim functions
function ltrim ( s )
{
	return s.replace( /^\s*/, "" )
}

function rtrim ( s )
{
	return s.replace( /\s*$/, "" );
}

//Combine the rtrim() and ltrim() functions to make the trim() function, which just wraps both calls together:

function trim ( s )
{
	return rtrim(ltrim(s));
}