// debug mode; 1=on, 0=off
var debug=0;

// object creation
function getobj( name ) {
  if( document.getElementById ) {
    try {
      this.obj=document.getElementById( name );
      this.style=document.getElementById( name ).style;
    } catch( e ) {
      if( debug==1 ) { alert( "getobj: "+e.message ); }
      return false;
    }
  } else if( document.all ) {
    try {
      this.obj=document.all[name];
      this.style=document.all[name].style;
    } catch( e ) {
      if( debug==1 ) { alert( "getobj: "+e.message ); }
      return false;
    }
  }
}

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

/* common ajax */
function getXmlHttpObject() {
  var xmlHttp=null;
  try {
    xmlHttp=new XMLHttpRequest();
  } catch( e ) {
    try {
      xmlHttp=new ActiveXObject( "Msxml2.XMLHTTP" );
    } catch( e ) {
      xmlHttp=new ActiveXObject( "Microsoft.XMLHTTP" );
    }
  }
  return xmlHttp;
}

// 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;
}

// browser detection
var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	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: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			   string: navigator.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();