var isMinNS4=(navigator.appName.indexOf("Netscape")>=0&&parseFloat(navigator.appVersion)>=4)?1:0;var isMinIE4=(document.all)?1:0;var isMinIE5=(isMinIE4&&navigator.appVersion.indexOf("5.")>=0)?1:0;
function hideLayer(layer){if(isMinNS4)layer.visibility="hide";if(isMinIE4)layer.style.visibility="hidden";}
function showLayer(layer){if(isMinNS4)layer.visibility="show";if(isMinIE4)layer.style.visibility="visible";}
function moveLayerTo(layer,x,y){if(isMinNS4)layer.moveTo(x,y);if(isMinIE4){layer.style.left=x;layer.style.top=y;}}
function moveLayerBy(layer,dx,dy){if(isMinNS4)layer.moveBy(dx,dy);if(isMinIE4){layer.style.pixelLeft+=dx;layer.style.pixelTop+=dy;}}
function clipLayer(layer,clipleft,cliptop,clipright,clipbottom){if(isMinNS4){layer.clip.left=clipleft;layer.clip.top=cliptop;layer.clip.right=clipright;layer.clip.bottom=clipbottom;}if(isMinIE4)layer.style.clip='rect('+cliptop+' '+clipright+' '+clipbottom+' '+clipleft+')';}
function getLayer(name){if(isMinNS4)return findLayer(name,document);if(isMinIE4)return eval('document.all.'+name);return null;}
function findLayer(name,doc){var i,layer;for(i=0;i<doc.layers.length;i++){layer=doc.layers[i];if(layer.name==name)return layer;if(layer.document.layers.length>0)if((layer=findLayer(name,layer.document))!=null)return layer;}return null;}
function getImage(name){if(isMinNS4){return findImage(name,document);}if(isMinIE4)return eval('document.all.'+name);return null;}
function findImage(name,doc){var i,img;for(i=0;i<doc.images.length;i++)if(doc.images[i].name==name)return doc.images[i];for(i=0;i<doc.layers.length;i++)if((img=findImage(name,doc.layers[i].document))!=null){img.container=doc.layers[i];return img;}return null;}
function getImagePageLeft(img){var x,obj;if(isMinNS4){if(img.container!=null)return img.container.pageX+img.x;else return img.x;}if(isMinIE4){x=0;obj=img;while(obj.offsetParent!=null){x+=obj.offsetLeft;obj=obj.offsetParent;}x+=obj.offsetLeft;return x;}return-1;}
function getImagePageTop(img){var y,obj;if(isMinNS4){if(img.container!=null)return img.container.pageY+img.y;else return img.y;}if(isMinIE4){y=0;obj=img;while(obj.offsetParent!=null){y+=obj.offsetTop;obj=obj.offsetParent;}y+=obj.offsetTop;return y;}return-1;}