var whitespace = " \t\n\r";

function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

function isWhitespace (s)

{   var i;

    // Is s empty?
    if (isEmpty(s)) return true;

    // Search through string's characters one by one
    // until we find a non-whitespace character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;
    }

    // All characters are whitespace.
    return true;
}

function OpenLookup (br_red, tablica, handler, order, dir, col1, col2 , col3, col4, col5 ) {
	var urlToGo = "/lookup/LookupPO.po";

	urlToGo += "?event=search";
	
	if(br_red != '') {
		urlToGo += "&broj_redaka=";
		urlToGo += br_red;
	}
	if(tablica != '') {
		urlToGo += "&tablica=";
		urlToGo += tablica;
	}
	if(handler != '') {
		urlToGo += "&handler=";
		urlToGo += handler;
	}
	if(order != '') {
		urlToGo += "&order=";
		urlToGo += order;
	}
	if(dir != '') {
		urlToGo += "&dir=";
		urlToGo += dir;
	}
	if(col1 != '') {
		urlToGo += "&col1=";
		urlToGo += col1;
	}
	if(col2 != '') {
		urlToGo += "&col2=";
		urlToGo += col2;
	}
	if(col3 != '') {
		urlToGo += "&col3=";
		urlToGo += col3;
	}
	if(col4 != '') {
		urlToGo += "&col4=";
		urlToGo += col4;
	}
	if(col5 != '') {
		urlToGo += "&=col5";
		urlToGo += col5;
	}
	
	loadwindow(urlToGo,500,270);
}

function OpenPopUp (url, w, h, title) {
	
    window.open(url, title,'width='+w+',height='+h+',resizable=yes,scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no');
}

function OpenPopUpBrowser (url, w, h, title) {
	
    window.open(url, title,'width='+w+',height='+h+',resizable=yes,scrollbars=yes,toolbar=yes,location=no,directories=no,status=yes,menubar=yes,copyhistory=no');
}