function showLegend()
{
LegendWindow = window.open("", "Legend", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,copyhistory=0,width=360,height=400");
LegendWindow.window.document.open();
LegendWindow.window.document.write("Map Legend
");
LegendWindow.window.document.close();LegendWindow.focus();
}
function zoomToTown(sTownName, sTownState, sTownPCode)
{
document.MapForm.townName.value = sTownName;
document.MapForm.townState.value = sTownState;
document.MapForm.townPCode.value = sTownPCode;
document.MapForm.submit();
}
function zoomToPoint(x, y)
{
document.MapForm.pointX.value = x;
document.MapForm.pointY.value = y;
document.MapForm.submit();
}
function centerFeature(x,y,sFeatureName)
{
document.MapForm.showFeature.value = sFeatureName;
zoomToPoint(x, y);
}
function goForward()
{
history.forward();
}
function goBack()
{
history.go(-1);
}
function setButtonsOff()
{
document.zoomIn.src = 'images/Zoom_In2.gif';
document.zoomOut.src = 'images/Zoom_Out.gif';
document.reCenter.src = 'images/Recentre_out2.gif';
document.reLocate.src = 'images/Original_In.gif';
}
function setModePlus()
{
setButtonsOff();
document.zoomIn.src = 'images/Zoom_In.gif';
_changeTo='crosshair';
document.MapForm.mapClickMode.value ='1';
}
function setModeMinus()
{
setButtonsOff();
document.zoomOut.src = 'images/Zoom_Out2.gif';
_changeTo='crosshair';
document.MapForm.mapClickMode.value ='2';
}
function setModeInfo()
{
setButtonsOff();
document.info.src = 'images/infoIn.gif';
_changeTo='help';
document.MapForm.mapClickMode.value ='5';
}
function setModeReCenter()
{
setButtonsOff();
document.reCenter.src = 'images/reCentre.gif';
document.MapForm.mapClickMode.value ='3';
}
function setModeReLocate()
{
setButtonsOff();
document.reLocate.src = 'images/Original_Out.gif';
_changeTo='crosshair';
document.MapForm.mapClickMode.value ='4';
}
function setMapClickMode()
{
var clickVal=document.MapForm.mapClickMode.value;
if (clickVal != '')
{
switch(clickVal)
{
case "1":
setModePlus();
break
case "2":
setModeMinus();
break
case "3":
setModeReCenter();
break
case "4":
setModeReLocate();
break
}
}
else
setModePlus();
}
function getRealLeft(imgElem)
{
xPos = eval(imgElem).offsetLeft;
tempEl = eval(imgElem).offsetParent;
while (tempEl != null)
{
xPos += tempEl.offsetLeft;
tempEl = tempEl.offsetParent;
}
return xPos;
}
function getRealTop(imgElem)
{
yPos = eval(imgElem).offsetTop;
tempEl = eval(imgElem).offsetParent;
while (tempEl != null)
{
yPos += tempEl.offsetTop;
tempEl = tempEl.offsetParent;
}
return yPos;
}
function ImagePageX(imageElement)
{
if (navigator.appName.toUpperCase().match(/MICROSOFT INTERNET EXPLORER/) != null)
{
return getRealLeft(imageElement);
}
if (navigator.appName.toUpperCase().match(/NETSCAPE/) != null)
{
return imageElement.x;
}
}
function ImagePageY(imageElement)
{
if (navigator.appName.toUpperCase().match(/MICROSOFT INTERNET EXPLORER/) != null)
{
return getRealTop(imageElement);
}
if (navigator.appName.toUpperCase().match(/NETSCAPE/) != null)
{
return imageElement.y;
}
}