// Copyright 2003 Eddie Traversa
// http://www.dhtmlnirvana.com/
// free to use as long as this copyright notice stays intact
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');
var pixelArray =  new Array('10','11','13','15','24','30','40');
var emArray =  new Array('0.7','0.9','1.0','1.5','2.0','2.5','3');
var initSize = 3;

function fontSizer(inc,unit,bSubmit) {
	if (!document.getElementById) 
		return;
	
		
	var size = initSize;
		size += inc;
		size = inc;
	if (size < 0 ) {
		size = 0;
	}
	if (size > 6 ) {
		size = 6;
	}
		initSize = size;
		//getBody = document.getElementsByTagName('body')[0];
		getBody = document.getElementsByTagName('span');
		
		for (r = 0 ; r < getBody.length ; r++) 
		{
			
			if ( getBody[r].id == "LetterSize" )
			{
			
				for (i = 0 ; i < tags.length ; i++ ) 
				{
					
					
					getallTags = getBody[r].getElementsByTagName(tags[i]);
					
					for (k = 0 ; k < getallTags.length ; k++) 
					{
						var tma
						tma = parseInt(getallTags[k].size) 
						
						if (tma=="-2" || tma=="-1" || tma=="0" || tma=="1" || tma=="2" || tma=="3" || tma=="4" || tma=="5") {
						
 						if (initSize=="1") {
							var valor=-1;
							size = (parseInt(tma) + parseInt(valor))
						}
						else if (initSize=="2") {
							var valor=0;
							size = (parseInt(tma) + parseInt(valor))
						} 
						else if (initSize=="3") {
							var valor=1;
							size = (parseInt(tma) + parseInt(valor))
							
						}
						}
						 
						getallTags[k].style.fontSize = (unit=='px') ? pixelArray[size]+unit: emArray[size]+unit;
						
					}
				}
			
			}
	
			
		}

	if ( bSubmit == 1){
		document.frmLetra.hidLetterSize.value = inc;
		document.frmLetra.submit();
	}
	
}