// JavaScript Document

function MM_preloadImages() { //v3.0
	var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
	var i,j=d.MM_p.length,a=new Array('images/star.gif','images/border_top.gif','images/border_left.gif','images/border_bottom.gif','images/border_right.gif','images/header.gif','images/linestrip.gif','images/vertical.gif','images/arrow.gif','images/arrow_right.gif','images/arrow_left.gif','images/hstripe.gif'); for(i=0; i<a.length; i++)
	if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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 MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function alpha_(field) {
	k = field.value
	for(i=0; i<k.length; i++) {
		if(k.charAt(i) >= 'A' && k.charAt(i) <= 'Z' || k.charAt(i) >= 'a' && k.charAt(i) <= 'z' || k.charAt(i) >= '0' && k.charAt(i) <= '9' || k.charAt(i) == '_') {
		} else {
			alert("Non-Alphanumeric Characters are not Allowed")
			return false;
    	}
    }
}

function focusCursor() {
	for (var i = 0; i < document.forms.length; ++i) {
		var f = document.forms[i];
		for (var j = 0; j < f.elements.length; ++j) {
			if (f.elements[j].type == 'text' || f.elements[j].type == 'textarea') {
				f.elements[j].focus();
				return;
			}
		}
	}
}

function showOverlay(pick) {
	if (pick != '') {
		document.getElementById(pick).style.display="block";
		
		hidethisOverlay(pick);
	} else {
		hideOverlay();
	}
}

function hidethisOverlay(pick){
	var viewArray = new Array('xfeats','specs');
	
	for (var i=0; i<viewArray.length; i++){ //deactivate all other sample IDs
		if (viewArray[i] != pick){
			document.getElementById(viewArray[i]).style.display="none";
		}                
	}
}

function hideOverlay(){
	if (document.getElementById('xfeats')) {
		document.getElementById('xfeats').style.display="none";
	}
	if (document.getElementById('specs')) {
		document.getElementById('specs').style.display="none";
	}
}

function swapImage(pick1, pick2,pick3) {
	var widenew = pick2+2;
	
	document['swapsample'].src=pick1;
	document['swapsample'].width=pick2;
	document['swapsample'].height=pick3;
	document.getElementById('details').style.width=widenew + 'px';
}

function swapInfo(pick1, pick2) {
	document.getElementById(pick1).className="on";
	hideOthers(pick1, pick2);
}

function hideOthers(pick1, pick2){
	var viewArray = new Array(pick2);
	
	for (var i=0; i<pick2; i++) { //create array values based on pick2 (numsamples)
		var a = i+1;
		viewArray[i] = 'view'+a;
	}

	for (var i=0; i<viewArray.length; i++){ //deactivate all other sample IDs
		var test = viewArray[i];
		if (test != pick1){
			document.getElementById(test).className="off";
		}                
	}
}

function showblock2(pick) {
	if (document.getElementById(pick).className == 'on') {
		document.getElementById(pick).className = 'off';
	} else {
		document.getElementById(pick).className = 'on';
	}
}


function showblock4(pick1, pick2) {
	var current = pick2+'block';
	if (current != pick1) {
		if (document.getElementById(pick1).className == 'on') {
			document.getElementById(pick1).className = 'off';
		} else {
			document.getElementById(pick1).className = 'on';
		}
	}
}


function breadcrumb(pick1, pick2, pick3, pick4, pick5) {
	document.getElementById(pick1).className="on";
	if (pick2) {
		document.getElementById(pick2).className="on";
		if (pick3) {
			document.getElementById(pick3).className="on";
			if (pick4) {
				document.getElementById(pick4).className="on";
				if (pick5) {
					document.getElementById(pick5).className="on";
				}
			}
		}
	}
}