//Specify affected tags. Add or remove from list:
var tgs = new Array( 'div','td','tr');

//Specify spectrum of different font sizes:
var szs = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );
var startSz = 2;

function ts( trgt,inc ) {
	if (!document.getElementById) return
	var d = document,cEl = null,sz = startSz,i,j,cTags;
	
	sz += inc;
	if ( sz < 0 ) sz = 0;
	if ( sz > 6 ) sz = 6;
	startSz = sz;
	
	if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];
	
	cEl.style.fontSize = szs[ sz ];
	
	for ( i = 0; i < tgs.length; i++ ) {
		cTags = cEl.getElementsByTagName( tgs[ i ] );
		for ( j = 0; j < cTags.length; j++ ) cTags[ j ].style.fontSize = szs[ sz ];
	}
}
function original(){
	document.getElementById.getElementByTagName.style.fontSize = '11px';
}

//Correção de Bug Internet Explorer
startList = function() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("ie");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" over";
  				}
  				node.onmouseout=function() {
  					this.className=this.className.replace
					(" over", "");
   				}
			}
		}
	}
}
window.onload=startList;



function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}