bVer = parseInt(navigator.appVersion);
function pop(src,name,w,h,scroll) {
if (scroll=="y")
window.open(src,name,"width="+w+",height="+h+",scrollbars=yes");
else
window.open(src,name,"width="+w+",height="+h);
}

var go_F1=new Image(22,16); go_F1.src = "../graphics/go_up.gif"; 
var go_F2=new Image(22,16); go_F2.src = "../graphics/go_ov.gif"; 

/* Function that swaps images. */
function di20(id, newSrc) {
var theImage = FWFindImage(document, id, 0);
if (theImage) {
theImage.src = newSrc;
}
}
/* Functions that track and set toggle group button states. */
function FWFindImage(doc, name, j) {
var theImage = false;
if (doc.images) {
theImage = doc.images[name];
}
if (theImage) {
return theImage;
}
if (doc.layers) {
for (j = 0; j < doc.layers.length; j++) {
theImage = FWFindImage(doc.layers[j].document, name, 0);
if (theImage) {
return (theImage);
}
}
}
return (false);
}


function makenumeric(strIn){
	s="";
	for (i=0;i<strIn.length;i++){
		c=strIn.charAt(i);
		if ((c=="1")||(c=="2")||(c=="3")||(c=="4")||(c=="5")||(c=="6")||(c=="7")||(c=="8")||(c=="9")||(c=="0")||(c==".")) s+=c;
	}
	if (s.length==0)s="0";
	return s;
}
function checknumber(sIn,sError){
	sIn.value=makenumeric(sIn.value);
	if (sIn.value==""){
		alert("Please enter "+sError+" then click 'Next' again.");
		return false;
	}
	else if (isNaN(parseFloat(sIn.value))) {
		alert("Please enter "+sError+" as a number ONLY then click 'Next' again.");
		return false;
	}
	return true;
}

function checklimits(sIn,sError,iMin,iMax){
	if (parseFloat(sIn.value)<iMin){
		alert("The "+sError+" must be higher than "+iMin+".");
		return false;
	}
	else if (parseFloat(sIn.value)>iMax) {
		alert("The "+sError+" must be less than "+iMax+".");
		return false;
	}
	return true;
}