var tgs = new Array( 'div','td','tr');
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;
	if(inc==4) sz=2;
	startSz = sz;
	
		
	if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];

	cEl.style.fontSize = szs[ sz ];
		if(inc==4){
			cEl.style.fontSize ='12px';
		}
		if(cEl.style.fontWeight=='bold'){
			cEl.style.fontWeight='bold';
				 }

	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 ];
		
			if(inc==4){
			cTags[ j ].style.fontSize ='12px';
			
		}
		if(cTags[ j ].style.fontWeight=='bold'){
			cTags[ j ].style.fontWeight='bold';
			
				 }
		
		}
	}
}