// JavaScript Document


var preload_imgs = new Array();



function initUI() {

	initHoverButtons();

	preloadImgs();

}



function initMemberLogin() {

	

	// username

	

	if (document.loginform.member_username.value=="") {

		document.getElementById("headerlogin_username_text").style.display="block";

	}

	

	document.loginform.member_username.onblur = function() {

		if (document.loginform.member_username.value=="") {

			document.getElementById("headerlogin_username_text").style.display = "block";

		}

	};

	document.getElementById("headerlogin_username_text").onmousedown = document.loginform.member_username.onfocus = function() {

		document.getElementById("headerlogin_username_text").style.display = "none";

	};

	document.getElementById("headerlogin_username_text").onmousedown = function() {

		document.loginform.member_username.focus();

	}



	// password

	

	if (document.loginform.member_password.value=="") {

		document.getElementById("headerlogin_password_text").style.display="block";

	}

	

	document.loginform.member_password.onblur = function() {

		if (document.loginform.member_password.value=="") {

			document.getElementById("headerlogin_password_text").style.display = "block";

		}

	};

	document.loginform.member_password.onfocus = function() {

		document.getElementById("headerlogin_password_text").style.display = "none";

	};

	document.getElementById("headerlogin_password_text").onmousedown = function() {

		document.loginform.member_password.focus();

	}



	

}





function preloadImgs() {

	var args = preload_imgs;

	document.imageArray = new Array(args.length);

	for(var i=0; i<args.length; i++) {

		document.imageArray[i] = new Image;

		document.imageArray[i].src = args[i];

	}

}



document.getElementsByClassName = function(cl) {

	var retnode = [];

	var myclass = new RegExp('\\b'+cl+'\\b');

	var elem = this.getElementsByTagName('*');

	for (var i = 0; i < elem.length; i++) {

	var classes = elem[i].className;

	if (myclass.test(classes)) retnode.push(elem[i]);}

	return retnode;

};



function initHoverButtons() {

	var butElements = document.getElementsByClassName('hoverbutton');

	

	// run through all elements with 'hoverbutton' class:

	for (var i = 0; i < butElements.length; i++) {

		var elem = butElements[i];		

		

		preload_imgs.push(genHoverSrc(elem.src,2));

		

		elem.onmouseover = function() {

			this.src = genHoverSrc(this.src,2);

		}

		

		elem.onmouseout = function() {

			this.src = genHoverSrc(this.src,1);

		}

		

	}

}



function genHoverSrc(img_src,state) {

	var ext = img_src.substring(img_src.length-4,img_src.length);

	var pre_ext = img_src.substring(0,img_src.length-5);

	return(pre_ext + state.toString() + ext);

}



var popUpWin=0;

function popUpWindow(URLStr, left, top, width, height, scrollbars) {

  if(popUpWin)

  {

    if(!popUpWin.closed) popUpWin.close();

  }



	// center window

	w = screen.availWidth;

	h = screen.availHeight;



	var popW = width, popH = height;

	var leftPos = (w-popW)/2, topPos = (h-popH)/2;

	// end center window

  

	popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars='+scrollbars+',resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+leftPos+', top='+topPos+',screenX='+leftPos+',screenY='+topPos+'');

}



// Text Size Toggle Script



	function toggleTextSize() {

		if (getActiveStyleSheet()=="smalltext") {

			setActiveStyleSheet('bigtext');

		} else {

			setActiveStyleSheet('smalltext');

		}		

	}



	function setActiveStyleSheet(title) {

	  var i, a, main;

	  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {

	    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {

	      a.disabled = true;

	      if(a.getAttribute("title") == title) a.disabled = false;

	    }


	  }

	}

	

	function getActiveStyleSheet() {

	  var i, a;

	  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {

	    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");

	  }

	  return null;

	}

	

	function getPreferredStyleSheet() {

	  var i, a;

	  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {

	    if(a.getAttribute("rel").indexOf("style") != -1

	       && a.getAttribute("rel").indexOf("alt") == -1

	       && a.getAttribute("title")

	       ) return a.getAttribute("title");

	  }

	  return null;

	}

	

	function createCookie(name,value,days) {

	  if (days) {

	    var date = new Date();

	    date.setTime(date.getTime()+(days*24*60*60*1000));

	    var expires = "; expires="+date.toGMTString();

	  }

	  else expires = "";

	  document.cookie = name+"="+value+expires+"; path=/";

	}

	

	function readCookie(name) {

	  var nameEQ = name + "=";

	  var ca = document.cookie.split(';');

	  for(var i=0;i < ca.length;i++) {

	    var c = ca[i];

	    while (c.charAt(0)==' ') c = c.substring(1,c.length);

	    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);

	  }

	  return null;

	}

	

	window.onload = function(e) {

	  var cookie = readCookie("style");

	  var title = cookie ? cookie : getPreferredStyleSheet();

	  setActiveStyleSheet(title);

	}

	

	window.onunload = function(e) {

		saveFontSize();

	}

	

	function saveFontSize() {

	  var title = getActiveStyleSheet();

	  createCookie("style", title, 365);

	}

	

	var cookie = readCookie("style");

	var title = cookie ? cookie : getPreferredStyleSheet();

	

	if ( getActiveStyleSheet() == "undefined" ) {

		setActiveStyleSheet("smalltext");	

	} else {

		setActiveStyleSheet(title);	

	}