// error handling
function stopError() { return true; }
window.onerror=stopError;

// object creation
function getObj(name) {
  if( document.getElementById ) {
    this.obj=document.getElementById( name );
    this.style=document.getElementById( name ).style;
  } else if( document.all ) {
    this.obj=document.all[name];
    this.style=document.all[name].style;
  }
}

// browser detection
var BrowserDetect = {
  init: function() {
    this.browser=this.searchString( this.dataBrowser ) || "unknown browser";
    this.version=this.searchVersion( navigator.userAgent ) || this.searchVersion( navigator.appVersion ) || "unknown version";
	},
  searchString: function( data ) {
    for( var i=0;i<data.length;i++ ) {
      var dataString=data[i].string;
      var dataProp=data[i].prop;
      this.versionSearchString=data[i].versionSearch || data[i].identity;
      if( dataString ) {
        if( dataString.indexOf( data[i].subString )!=-1 ) { return data[i].identity; }
      }
      else if( dataProp ) {
        return data[i].identity;
      }
    }
  },
  searchVersion: function( dataString ) {
    var index=dataString.indexOf( this.versionSearchString );
    if( index==-1 ) { return; }
    return parseFloat( dataString.substring( index+this.versionSearchString.length+1 ) );
	},
	dataBrowser: [
		{ string: navigator.userAgent, subString: "Firefox", identity: "Firefox" },
		{ string: navigator.userAgent, subString: "Netscape", identity: "Netscape" },
		{ string: navigator.userAgent, subString: "MSIE", identity: "Explorer", versionSearch: "MSIE" }
	]
};
BrowserDetect.init();

// delete confirmation
function confirmDelete( ) {
  if( confirm('Do you REALLY want to delete this?') ) return true;
  else return false;
}

// url encoding
function urlencode( str ) {
  str=escape( str );
  str=str.replace( '+','%2B' );
  str=str.replace( '%20','+' );
  str=str.replace( '*','%2A' );
  str=str.replace( '/','%2F' );
  str=str.replace( '@','%40' );
  return str;
}

function urldecode( str ) {
  str=str.replace( '+',' ' );
  str=unescape( str );
  return str;
}