function getTextTD(tr,val,colSpan,className){td=tr.insertCell(-1);if(!isNull(colSpan)&&colSpan>1){td.colSpan=colSpan;}
if(!isNull(className)){td.className=className;}
td.appendChild(document.createTextNode(val));return td;}
function getSPAN(val,className){span=document.createElement('SPAN');if(!isNull(className)){span.className=className;}
span.appendChild(document.createTextNode(val));return span;}
function getDIV(val,className){span=document.createElement('DIV');if(!isNull(className)){span.className=className;}
span.appendChild(document.createTextNode(val));return span;}
function addElmEventListener(elm,ee,func){if(window.addEventListener){elm.addEventListener(ee,func,false);}else{ee='on'+ee;elm.attachEvent(ee,func);}}