isDOM=document.getElementById isMSIE=document.all&&document.all.item isNetscape4=document.layers isOpera=window.opera isOpera5=isOpera&&isDOM isMSIE5=isDOM&&isMSIE&&!isOpera isMozilla=isNetscape6=isDOM&&!isMSIE&&!isOpera var obj;function getLayer(layerName,parentLayerName){if(isDOM){return document.getElementById(layerName)}if(isMSIE){return document.all[layerName]}if(isNetscape4){return eval('document.layers[layerName]')}return false}function ts(e,what){mousex=e.clientX;mousey=e.clientY;pagexoff=0;pageyoff=0;if(isMSIE5){pagexoff=document.body.scrollLeft;pageyoff=document.body.scrollTop}else{pagexoff=window.pageXOffset;pageyoff=window.pageYOffset}if(getLayer(what)){if(isNetscape4)obj=getLayer(what);else obj=getLayer(what).style;if(obj){leftoff=mousex-pagexoff;obj.left=(mousex+pagexoff);topoff=mousey-pageyoff;if(isOpera&&topoff<=30)obj.top=mousey+20;else if(mousey<=30)obj.top=(mousey+pageyoff)+20;else if(isOpera)obj.top=mousey+20;else obj.top=(mousey+pageyoff)+20;if(isNetscape4)obj.visibility='show';else obj.visibility='visible'}}return true}function tc(){if(obj){if(isNetscape4)obj.visibility='hide';else obj.visibility='hidden'}return true}