var initSize=1;

function resizeFont(step)
{

	var pixelArray =  new Array('10','12','16');
	var tags = new Array( 'div','td','tr','p','b','table','strong','emphasis','a','h1','h2','h3','pre','sub','sup','i','th','cp','ul','ol','li','dt','dd','font');
	//tags=new Array('p');
	var size = initSize;
		size += step;
	if (size < 0 )
		size = 0;
	if (size > 2 )
		size = 2;
		
	initSize = size;
	var cBody=document.body;
	for(i=0;i<tags.length;i++){
			
		var cBodyTags= cBody.getElementsByTagName(tags[i]);
		if(cBodyTags){
			for(j=0;j<cBodyTags.length;j++){
				var tag=cBodyTags[j];
				if(tag.className != "shifter" && tag.className != "shiftUp" && tag.className != "shiftDown") {
				  tag.style.fontSize = pixelArray[size]+'px';
         }	
			}	
		}
	
	}
	
	
}