/*
  * parsing url 
  * 
  */
 function parseGetVars() {
	var getVars = new Array();
	var qString = unescape(top.location.search.substring(1));
	var pairs = qString.split(/\&/);
	for (var i in pairs) {
		var nameVal = pairs[i].split(/\=/);
		getVars[nameVal[0]] = nameVal[1];
		}	
	return getVars;
}
 
 /* 
  * window resizing
  */
 
 function adjustForScroll(id,w,h) {
  var winSize = getWindowSize();
  var obj = document.getElementById(id);

  if(winSize.w < w) {
     obj.style.width = w + "px";
  }
  else {
     obj.style.width = "100%";
  }
  if(winSize.h < h) {
     obj.style.height = h + "px";
  }
  else {
     obj.style.height = (winSize.h)-2 + "px";
  }
}

function getWindowSize() {
	var width = 0;
	var height = 0;
      if( typeof( window.innerWidth ) == 'number' ) {
         width = window.innerWidth;
         height = window.innerHeight;
      } else if(document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight))  {
          width = document.documentElement.clientWidth;
          height = document.documentElement.clientHeight;
      } else if(document.body && (document.body.clientWidth || document.body.clientHeight)) {
          width = document.body.clientWidth;
          height = document.body.clientHeight;
      }
      return {w:width,h:height}		      
} 
 /* 
  * cookies
  */
 function Set_Cookie( name, value, path, domain ) {
 	
	
	// set time, it's in milliseconds
	var today = new Date();
	today.setTime( today.getTime() );
	expires = new Date();
	expires.setTime(today.getTime() + 3600000 * 24 * 365);
	
	// alert("Set_Cookie name: " + name + " value: " + value + " expires: " + expires + " document: " + document + " document.cookie " + document.cookie);
	/*
	if the expires variable is set, make the correct 
	expires time, the current script below will set 
	it for x number of days, to make it for hours, 
	delete * 24, for minutes, delete * 60 * 24
	*/
	//if ( expires )
	//{
	//expires = expires * 1000 * 60 * 60 * 24;
	//}
	// var expires_date = new Date( today.getTime() + (expires) );
	
	var thisCookie = name + "=" +escape( value ) +
	( ( expires ) ? ";expires=" + expires.toGMTString() : "" ) + 
	( ( path ) ? ";path=" + path : "" ) + 
	( ( domain ) ? ";domain=" + domain : "" );
	

	document.cookie = thisCookie;
	// alert("Set_Cookie document.cookie " + thisCookie);
	
	// alert("Get_Cookie Get_Cookie(name) " + Get_Cookie(name));
}

 function Get_Cookie( check_name ) {
	// first we'll split this cookie up into name/value pairs
	// note: document.cookie only returns name=value, not the other components
	var a_all_cookies = document.cookie.split( ';' );
	var a_temp_cookie = '';
	var cookie_name = '';
	var cookie_value = '';
	var b_cookie_found = false; // set boolean t/f default f
	
	for ( i = 0; i < a_all_cookies.length; i++ )
	{
		// now we'll split apart each name=value pair
		a_temp_cookie = a_all_cookies[i].split( '=' );
		
		
		// and trim left/right whitespace while we're at it
		cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');
	
		// if the extracted name matches passed check_name
		if ( cookie_name == check_name )
		{
			b_cookie_found = true;
			// we need to handle case where cookie has no value but exists (no = sign, that is):
			if ( a_temp_cookie.length > 1 )
			{
				cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, '') );
			}
			// note that in cases where cookie is initialized but no value, null is returned
			return cookie_value;
			break;
		}
		a_temp_cookie = null;
		cookie_name = '';
	}
	if ( !b_cookie_found )
	{
		return null;
	}
}

// this deletes the cookie when called
function Delete_Cookie( name, path, domain ) {
	if ( Get_Cookie( name ) ) document.cookie = name + "=" +
	( ( path ) ? ";path=" + path : "") +
	( ( domain ) ? ";domain=" + domain : "" ) +
	";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}
 
 /* 
  * browser detection
  */
var _appName = navigator.appName;
var _appVersion = navigator.appVersion;
var _userAgent = navigator.userAgent.toLowerCase();

function getBrowser(){
	 var browser = '';
      
      if ((_appName.indexOf('Microsoft') != -1) && (_userAgent.indexOf('mac') == -1)) {
		  browser = 'IE';
	  // mac ie
	  } else if ((_appName.indexOf('Microsoft') != -1) && (_userAgent.indexOf('mac') != -1)) {		
	      browser = 'Other';
	  } else if (_userAgent.indexOf('safari') != -1) {
		  browser = 'Safari';
	  } else if (_userAgent.indexOf('firefox') != -1) {
		  browser = 'Firefox';
	  } else {
		  browser = 'Other';
	  }
	  return browser;
}