// aimsDHTML.js
aimsDHTMLPresent=true;
// Create a DHTML layer
function createLayer(name, inleft, intop, width, height, visible, content) {
var layer;
if (isNav4) {
document.writeln('<layer name="' + name + '" left=' + inleft + ' top=' + intop + ' width=' + width + ' height=' + height +  ' visibility=' + (visible ? '"show"' : '"hide"') +  '>');
document.writeln(content);
document.writeln('</layer>');
} else {
document.writeln('<div id="' + name + '" style="position:absolute; overflow:hidden; left:' + inleft + 'px; top:' + intop + 'px; width:' + width + 'px; height:' + height + 'px;' + '; z-index:1; visibility:' + (visible ? 'visible;' : 'hidden;') +  '">');
document.writeln(content);
document.writeln('</div>');
}
}
// get the layer object called "name"
function getLayer(name) {
if (isNav4)
return(document.layers[name]);
else if (isIE4) {
layer = eval('document.all.' + name + '.style');
return(layer);
} else if (is5up) {
var theObj = document.getElementById(name);
return theObj.style
}
else
return(null);
}
// get the layer object called "name" if in OverviewFrame
function getOVLayer(name) {
if (parent.OverviewFrame!=null) {
if (isNav4)
return(parent.OverviewFrame.document.layers[name]);
else if (isIE4) {
layer = eval('parent.OverviewFrame.document.all.' + name + '.style');
return(layer);
} else if (is5up) {
var theObj = parent.OverviewFrame.document.getElementById(name);
return theObj.style
}
else
return(null);
} else
return getLayer(name);
}
function isVisible(name) {
var layer = getLayer(name);
if (isNav && layer.visibility == "show")
return(true);
if (isIE && layer.visibility == "visible")
return(true);
return(false);
}
function moveLayer(name, x, y) {
var layer = getLayer(name);
if (isNav4)
layer.moveTo(x, y);
else {
layer.left = x + "px";
layer.top  = y + "px";
}
}
// set layer background color
function setLayerBackgroundColor(name, color) {
var layer = getLayer(name);
if (isNav4)
layer.bgColor = color;
else
layer.backgroundColor = color;
}
function hideLayer(name) {
var layer = getLayer(name);
if (isNav4)
layer.visibility = "hide";
//if (document.all)
else
layer.visibility = "hidden";
//layer.display="none";
}
// toggle layer to visible
function showLayer(name) {
var layer = getLayer(name);
if (isNav4)
layer.visibility = "show";
//if (document.all)
else
layer.visibility = "visible";
//layer.display="block";
}
// toggle Overview layer to visible - if in OverviewFrame
function showOVLayer(name) {
var layer = getOVLayer(name);
if (isNav4)
layer.visibility = "show";
//if (document.all)
else
layer.visibility = "visible";
//layer.display="block";
}
// toggle Overview layer to invisible - if in OverviewFrame
function hideOVLayer(name) {
var layer = getOVLayer(name);
if (isNav4)
layer.visibility = "hide";
//if (document.all)
else
layer.visibility = "hidden";
//layer.display="block";
}
// clip layer display to clipleft, cliptip, clipright, clipbottom
// Not working with Mozilla Milestone 12 (Nav5)
function clipLayer2(name, clipleft, cliptop, clipright, clipbottom) {
var layer = getLayer(name);
if (isNav4) {
layer.clip.left   = clipleft;
layer.clip.top    = cliptop;
layer.clip.right  = clipright;
layer.clip.bottom = clipbottom;
}
//if (document.all)
else if (isIE) {
layer.clip = 'rect(' + cliptop + ' ' +  clipright + ' ' + clipbottom + ' ' + clipleft +')';
}
}
function clipLayer(name, clipleft, cliptop, clipright, clipbottom) {
var layer = getLayer(name);
if (isNav4) {
layer.clip.left   = clipleft;
layer.clip.top    = cliptop;
layer.clip.right  = clipright;
layer.clip.bottom = clipbottom;
}	  else {
//layer.clip = 'rect(' + cliptop + ' ' +  clipright + ' ' + clipbottom + ' ' + clipleft +')';
var newWidth = clipright - clipleft;
var newHeight = clipbottom - cliptop;
layer.height = newHeight;
layer.width	= newWidth;
//var theTop = parseInt((parseFloat(cliptop) * 10 + 0.5)/10);
//var theLeft = parseInt((parseFloat(clipleft) * 10 + 0.5)/10);
//alert(cliptop + " " + clipleft);
layer.top	= cliptop  + "px";
layer.left	= clipleft + "px";
//layer.display= "none";
}
}
// clip layer in OverviewFrame
function clipOVLayer(name, clipleft, cliptop, clipright, clipbottom) {
var layer = getLayer(name);
if (parent.OverviewFrame!=null) layer = getOVLayer(name);
if (isNav4) {
layer.clip.left   = clipleft;
layer.clip.top    = cliptop;
layer.clip.right  = clipright;
layer.clip.bottom = clipbottom;
}	  else {
//layer.clip = 'rect(' + cliptop + ' ' +  clipright + ' ' + clipbottom + ' ' + clipleft +')';
if ((clipright.isNaN) || (clipleft.isNaN) || (cliptop.isNaN) || (clipbottom.isNaN)) {
layer.visibility = "hidden";
} else {
var newWidth = clipright - clipleft;
var newHeight = clipbottom - cliptop;
if ((newWidth<=0) || (newHeight<=0)) {
layer.visibility = "hidden";
} else {
//if (newWidth.isNaN) newWidth = parseInt(i2Width);
//if (newHeight.isNaN) newHeight = parseInt(i2Height);
//alert(newWidth + "," + newHeight);

layer.height = newHeight;
layer.width	= newWidth;
//var theTop = parseInt((parseFloat(cliptop) * 10 + 0.5)/10);
//var theLeft = parseInt((parseFloat(clipleft) * 10 + 0.5)/10);
//alert(cliptop + " " + clipleft);
layer.top	= cliptop  + "px";
layer.left	= clipleft + "px";
//layer.display= "none";
layer.visibility = "visible";
}
}
}
}
// replace layer's content with new content
// not working with Mozilla Milestone 12 (Nav5)
function replaceLayerContent(name, content) {
if (isNav4) {
var layer = getLayer(name);
layer.document.open();
layer.document.writeln(content);
layer.document.close();
}  else if (isIE) {
var str = "document.all." + name + ".innerHTML = '" + content + "'";
eval(str);
}
}
// toggle Overview Map display
function toggleOVMap() {
if (imsURL!="") {
ovIsVisible = !ovIsVisible;
if (ovIsVisible) {
//showRetrieveMap();
//var theString = writeOVXML();
putExtentOnOVMap();
showLayer("ovLayer");
showLayer("ovShadow");

} else {
hideLayer("ovLayer");
hideLayer("ovShadow");

hideLayer("zoomOVBoxTop");
hideLayer("zoomOVBoxLeft");
hideLayer("zoomOVBoxRight");
hideLayer("zoomOVBoxBottom");
}
if (isIE) {
document.all.theTop.style.cursor = theCursor;
}
} else {
alert(msgList[45]);
}
}
// plot extent box on overview map - only for Overview if in OverviewFrame
function putExtentOnOVMap() {
var ovXincre = fullOVWidth / i2Width;
var ovYincre = fullOVHeight / i2Height;
var vleft = (eLeft - fullOVLeft) / ovXincre + ovBorderWidth;
var vright = (eRight - fullOVLeft) / ovXincre + ovBorderWidth;
var vtop = (fullOVTop - eTop) / ovYincre + ovBorderWidth;
var vbottom = (fullOVTop - eBottom) / ovYincre + ovBorderWidth;
if (vright>i2Width+ovBorderWidth) vright = i2Width;
if (vbottom>i2Height+ovBorderWidth) vbottom = i2Height;
if (!isNav4) {
vleft = vleft + ovHspc;
vright = vright + ovHspc;
vtop = vtop + ovVspc;
vbottom = vbottom + ovVspc;
}
if (eTop>fullOVBottom) {
clipOVLayer("zoomOVBoxTop",vleft,vtop-ovExtentBoxSize,vright+1,vtop);
showOVLayer("zoomOVBoxTop");
} else {
hideOVLayer("zoomOVBoxTop");
}
if (eLeft<fullOVRight) {
clipOVLayer("zoomOVBoxLeft",vleft-ovExtentBoxSize,vtop-ovExtentBoxSize,vleft,vbottom);
showOVLayer("zoomOVBoxLeft");
} else {
hideOVLayer("zoomOVBoxLeft");
}
if (eRight>fullOVLeft) {
clipOVLayer("zoomOVBoxRight",vright,vtop-ovExtentBoxSize,vright+ovExtentBoxSize,vbottom);
showOVLayer("zoomOVBoxRight");
} else {
hideOVLayer("zoomOVBoxRight");
}
if (eBottom<fullOVTop) {
clipOVLayer("zoomOVBoxBottom",vleft,vbottom-ovExtentBoxSize,vright+1,vbottom);
showOVLayer("zoomOVBoxBottom");
} else {
hideOVLayer("zoomOVBoxBottom");
}
}
function boxIt(theLeft,theTop,theRight,theBottom) {
if (!isNav4) {
theTop = theTop + vspc;
theBottom = theBottom + vspc;
theLeft = theLeft + hspc;
theRight = theRight + hspc;
}
clipLayer("zoomBoxTop",theLeft,theTop,theRight,theTop+ovBoxSize);
clipLayer("zoomBoxLeft",theLeft,theTop,theLeft+ovBoxSize,theBottom);
clipLayer("zoomBoxRight",theRight-ovBoxSize,theTop,theRight,theBottom);
clipLayer("zoomBoxBottom",theLeft,theBottom-ovBoxSize,theRight,theBottom);
showLayer("zoomBoxTop");
showLayer("zoomBoxLeft");
showLayer("zoomBoxRight");
showLayer("zoomBoxBottom");
}