// 		javascript functions for Paul Rangel's website
// 		4.10.2002
//		use and reuse
//
//
// taken from oreilly book to show elements of the
// add edit form, we'll see if it works

function toggleStartDate(evt) {
	evt = (evt) ? evt : event;
	var target 	=	(evt.target) ? evt.target : evt.srcElement;
	var block 	= 	document.getElementById("yes_active_div");
	var block2 	= 	document.getElementById("yes_inactive_div");
	
	if(target.id == "yes_active") {
		block.style.display = "block";
		block2.style.display = "none";
	} else {
		if(target.id == "yes_inactive") {
			block.style.display = "block";
			block2.style.display = "block";
		} else {
			if(target.id == "no") {
				block.style.display = "none";
				block2.style.display = "none";
			}
		}
	}

}

function MM_goToURL() { //v3.0
  	var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
 	for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function changeValue(elm,name)
{
	for (var i = 0; i < elm.form.elements.length; i++)
	{
		if (elm.form.elements[i].name.indexOf(name) == 0)
		{
			elm.form.elements[i].value = elm.options[elm.selectedIndex].value;
		}
	}
}

function changeSelected(elm, name)
{
	for (var i = 0; i < elm.form.elements.length; i++)
	{
		if (elm.form.elements[i].name.indexOf(name) == 0)
		{
			elm.form.elements[i].selectedIndex = elm.options[elm.selectedIndex].value-1;
		}
	}
}

function newWindow(mypage, myname, w, h, scroll) {
var thisPage = mypage;
var winl = (screen.width - w) / 2;
var wint = (screen.height - h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',location=no,resizable'
//alert(winprops)
win = window.open(thisPage, myname, winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
//		tir_button_over = newImage("images/tir_button-over.gif");
//		tube_button_over = newImage("images/tube_button-over.gif");
//		biotron_button_over = newImage("images/biotron_button-over.gif");
		preloadFlag = true;
	}
	
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

// wheelerstreet logo start (location: footer)--------------------------------------------->

function preloadImages() {
	if (document.images) {
		ws_logo_over = newImage("images/ws_logo_over.gif");
		preloadFlag = true;
	}

}

// wheelerstreet logo end (location: footer)---------------------------------------------->