// JavaScript Document

function controllo_ricerca(theForm) {		
	if (theForm.SearchedTxt.value == 'Cerca nel sito') {
    	alert("Per favore inserire il testo da ricercare, grazie.");
    	theForm.SearchedTxt.focus();
    	return (false);
	}
};
	
function InputDel(campo) {
	if (campo.value == 'Cerca nel sito' ) {
		campo.value= '';
	}	
};

function InputFill(campo) {
	if (campo.value == '') {
		campo.value = 'Cerca nel sito';
	}	
};

function createplayer(id, autostart, divid, width, height, theFile, theImage){
	theFile = URLEncode(theFile)+'&controlbar=bottom';
	if (autostart) {
	  theFile += '&autostart=false';
    }
	var so = new SWFObject('/swf/mediaplayer.swf',id,width,height,'8');
	so.addParam('allowfullscreen','true');
	so.addParam('allowscriptaccess','always');			
	so.addParam('wmode','transparent');
	so.addParam('flashvars','&file='+theFile);
	so.addVariable('width',width);
	so.addVariable('height',height);
//  so.addVariable('logo','/immagini/struttura/logo_tv.png');
	so.addVariable("enablejs","true");
	so.addVariable('frontcolor','0x990000');
	so.addVariable('lightcolor','0x262626');
	so.addVariable('screencolor','0x262626');
	so.addVariable('shuffle','false');
	so.addVariable('image',URLEncode(theImage));
	so.addVariable('overstretch','false');
	so.addVariable('displaywidth', width);
	so.addVariable('displayheight', height);
	so.addVariable('thumbsinplaylist', 'false');
	so.addVariable('autoscroll', 'false');
	//so.addParam('autostart', autostart);
    so.write(divid);
};

function URLEncode(s)
{
	var SAFECHARS = "0123456789" +					// Numeric
					"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +	// Alphabetic
					"abcdefghijklmnopqrstuvwxyz" +
					"-_!~*'()";					// RFC2396 Mark characters
	var HEX = "0123456789ABCDEF";

	var plaintext = s;
	var encoded = "";
	for (var i = 0; i < plaintext.length; i++ ) {
		var ch = plaintext.charAt(i);
	    if (ch == " ") {
		    encoded += "+";				// x-www-urlencoded, rather than %20
		} else if (SAFECHARS.indexOf(ch) != -1) {
		    encoded += ch;
		} else {
		    var charCode = ch.charCodeAt(0);
			if (charCode > 255) {
			    alert( "Unicode Character '" 
                        + ch 
                        + "' cannot be encoded using standard URL encoding.\n" +
				          "(URL encoding only supports 8-bit characters.)\n" +
						  "A space (+) will be substituted." );
				encoded += "+";
			} else {
				encoded += "%";
				encoded += HEX.charAt((charCode >> 4) & 0xF);
				encoded += HEX.charAt(charCode & 0xF);
			}
		}
		} // for

	
	return encoded;
};

function URLDecode(s)
{
   // Replace + with ' '
   // Replace %xx with equivalent character
   // Put [ERROR] in output if %xx is invalid.
   var HEXCHARS = "0123456789ABCDEFabcdef"; 
   var encoded = s;
   var plaintext = "";
   var i = 0;
   while (i < encoded.length) {
       var ch = encoded.charAt(i);
	   if (ch == "+") {
	       plaintext += " ";
		   i++;
	   } else if (ch == "%") {
			if (i < (encoded.length-2) 
					&& HEXCHARS.indexOf(encoded.charAt(i+1)) != -1 
					&& HEXCHARS.indexOf(encoded.charAt(i+2)) != -1 ) {
				plaintext += unescape( encoded.substr(i,3) );
				i += 3;
			} else {
				alert( 'Bad escape combination near ...' + encoded.substr(i) );
				plaintext += "%[ERROR]";
				i++;
			}
		} else {
		   plaintext += ch;
		   i++;
		}
	} // while
   
   return plaintext;
};