//Run this at startup
addLoadEvent(init);

var d=document, articles = new Array(), article_thumbs = new Array(), current=0, pause=7, switch_article_clear=null;
var stop_switching = false;

function init() {
	if(!d.getElementById || !d.createElement) return;
	
	//Make sure this only runs on the home page!
	if(d.getElementsByTagName("body")[0].id != "home") return;

	//Fix the blog and news boxes to same height
	sizeBoxes();

	/* If there is javascript setup the other articles styles 
	css = d.createElement("link");
	css.setAttribute("href","/styles/home_javascript.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	d.getElementsByTagName("head")[0].appendChild(css);
	*/
	
	articles = [d.getElementById("article1"),d.getElementById("article2"),d.getElementById("article3")];
	article_thumbs = [d.getElementById("articleThumb1"),d.getElementById("articleThumb2"),d.getElementById("articleThumb3")];
	
	for(i=0;i<articles.length;i++) {
		if(!articles[i]) {
			articles.pop();
			i--;
			continue;
		}
		articles[i].xOpacity = 0;
		article_thumbs[i].xOpacity = .99;
		//article_thumbs[i].src = articles[i].getElementsByTagName("img")[0].src;
		article_thumbs[i].parentNode.href="#";
	}
	
	article_thumbs[0].className = "selected";
	articles[0].style.display = "block";
	articles[0].xOpacity = .99;
	article_thumbs[0].xOpacity = .50;
		
	switch_article_clear = setTimeout("switch_article(1)",pause*500);
}

/*User clicks on an article */
function article(article_id) {
	clearTimeout(switch_article_clear);
	stop_switching = true;
	switch_article(article_id - 1);
}

function switch_article(to) {
	if(to == current) return;
	
	nIndex = articles[to]?to:0;
	
	articles[nIndex].style.display = "block";
	articles[current].xOpacity -= .100;
	articles[nIndex].xOpacity += .100;
	
	setOpacity(articles[current]); 
	setOpacity(articles[nIndex]);
	
	//change the thumbs too	
	article_thumbs[current].className = "";
	article_thumbs[nIndex].className = "selected";
	
	if(article_thumbs[current].xOpacity < 1.08) {
		article_thumbs[current].xOpacity += .1;
		setOpacity(article_thumbs[current]); 
	}
		
	article_thumbs[nIndex].xOpacity -= .05;	 
	setOpacity(article_thumbs[nIndex]);

	if(articles[current].xOpacity<=0) {
		articles[current].style.display = "none";
		
		article_thumbs[current].xOpacity = .99;
		setOpacity(article_thumbs[current]);
		current = nIndex;
		var next_one = current + 1;
		if(!stop_switching)
			switch_article_clear = setTimeout("switch_article("+ next_one +")",pause*500);
	} else {
		setTimeout("switch_article("+ nIndex +")",100);
	}
}


function setOpacity(element) {
	var value = parseFloat(element.xOpacity);
	
	if (value >= 1) {
          value = (/Gecko/.test(navigator.userAgent) &&
            !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ? 0.999999 : 1.0;
    } 
	else if(value < 0.00001) value = 0;
	
	
	if(/MSIE/.test(navigator.userAgent) && !window.opera)
	  element.style.filter = 'alpha(opacity='+value*100+')';
	else
		element.style.opacity = element.xOpacity;
	
}
	

function oldSetOpacity(obj) {
	if(obj.xOpacity > 0.99) {
		obj.xOpacity = 0.99;
		return;
	}
	obj.style.opacity = obj.xOpacity;
	obj.style.MozOpacity = obj.xOpacity;
	obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
}

function sizeBoxes() {
	var left = document.getElementById("blogBoxUL");
	var right = document.getElementById("newsBoxUL");
	if(left && right) {
		if(left.offsetHeight && (left.offsetHeight > right.offsetHeight)) {
			right.style.height = left.offsetHeight - 2 + "px";
		} else if(right.offsetHeight && (left.offsetHeight < right.offsetHeight)) {
			left.style.height = right.offsetHeight - 2 + "px";
		}
	}
}

























function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}




function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function YY_checkform() { //v4.71
//copyright (c)1998,2002 Yaromat.com
document.MM_returnValue = false;
  var a=YY_checkform.arguments,oo=true,v='',s='',err=false,r,o,at,o1,t,i,j,ma,rx,cd,cm,cy,dte,at;
  for (i=1; i<a.length;i=i+4){
    if (a[i+1].charAt(0)=='#'){r=true; a[i+1]=a[i+1].substring(1);}else{r=false}
    o=MM_findObj(a[i].replace(/\[\d+\]/ig,""));
    o1=MM_findObj(a[i+1].replace(/\[\d+\]/ig,""));
    v=o.value;t=a[i+2];
    if (o.type=='text'||o.type=='password'||o.type=='hidden'){
      if (r&&v.length==0){err=true}
      if (v.length>0)
      if (t==1){ //fromto
        ma=a[i+1].split('_');if(isNaN(v)||v<ma[0]/1||v > ma[1]/1){err=true}
      } else if (t==2){
        rx=new RegExp("^[\\w\.=-]+@[\\w\\.-]+\\.[a-zA-Z]{2,4}$");if(!rx.test(v))err=true;
      } else if (t==3){ // date
        ma=a[i+1].split("#");at=v.match(ma[0]);
        if(at){
          cd=(at[ma[1]])?at[ma[1]]:1;cm=at[ma[2]]-1;cy=at[ma[3]];
          dte=new Date(cy,cm,cd);
          if(dte.getFullYear()!=cy||dte.getDate()!=cd||dte.getMonth()!=cm){err=true};
        }else{err=true}
      } else if (t==4){ // time
        ma=a[i+1].split("#");at=v.match(ma[0]);if(!at){err=true}
      } else if (t==5){ // check this 2
            if(o1.length)o1=o1[a[i+1].replace(/(.*\[)|(\].*)/ig,"")];
            if(!o1.checked){err=true}
      } else if (t==6){ // the same
            if(v!=MM_findObj(a[i+1]).value){err=true}
      }
    } else
    if (!o.type&&o.length>0&&o[0].type=='radio'){
          at = a[i].match(/(.*)\[(\d+)\].*/i);
          o2=(o.length>1)?o[at[2]]:o;
      if (t==1&&o2&&o2.checked&&o1&&o1.value.length/1==0){err=true}
      if (t==2){
        oo=false;
        for(j=0;j<o.length;j++){oo=oo||o[j].checked}
        if(!oo){s+='* '+a[i+3]+'\n'}
      }
    } else if (o.type=='checkbox'){
      if((t==1&&o.checked==false)||(t==2&&o.checked&&o1&&o1.value.length/1==0)){err=true}
    } else if (o.type=='select-one'||o.type=='select-multiple'){
      if(t==1&&o.selectedIndex/1==0){err=true}
    }else if (o.type=='textarea'){
      if(v.length<a[i+1]){err=true}
    }
    if (err){s+='* '+a[i+3]+'\n'; err=false}
  }
  if (s!=''){alert('The required information is incomplete or contains errors:\t\t\t\t\t\n\n'+s)}
  document.MM_returnValue = (s=='');
}


function highlightDay(day_id) {
	document.getElementById(day_id).getElementsByTagName("dl")[0].style.backgroundColor = "#E8EDFF";
}
function lowlightDay(day_id) {
	document.getElementById(day_id).getElementsByTagName("dl")[0].style.backgroundColor = "";
}