Util={};
Util.open=function(){


}
Util.onMe=function(me){
	me.style.backgroundColor='#B4CFF7';
    me.style.color='#103363';
}

Util.outMe=function (me){
	me.style.backgroundColor='';
	me.style.color='';
}

var tgs = new Array( 'div','p','a','span','td');
var szs = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );
var startSz = 2;

Util.setFontSize=function(trgt,isAdd){
	var d = document,cEl = null,i,j,cTags;
	if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];
	if(!cEl.oldFontSize){
		cEl.oldFontSize=2;
	}
	sz=cEl.oldFontSize;
	if(isAdd){
		sz += 1;
	}else{
		sz -= 1;
	}
	if ( sz < 0 ) sz = 0;
	if ( sz > 6 ) sz = 6;
	startSz = sz;
	
	cEl.oldFontSize=sz;
	cEl.style.fontSize = szs[cEl.oldFontSize];

	for ( i = 0 ; i < tgs.length ; i++ ) {
		cTags = cEl.getElementsByTagName( tgs[ i ] );
		for ( j = 0 ; j < cTags.length ; j++ ) 
			cTags[ j ].style.fontSize = szs[cEl.oldFontSize];
	}
}