// JavaScript Document

var arFontSize = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );
var startSize = 2;
var tags = new Array('p','li', 'div','td','a', 'span', 'h3', 'h4', 'h5', 'h6');

function changeTextSize( target,inc ) {

		if (!document.getElementById) return
		var d = document,cEl = null,size = startSize,i,j,cTags;
		size += inc;
		if ( size < 0 ) size = 0;
		if ( size > 6 ) size = 6;
		startSize = size;
		if ( !( cEl = d.getElementById( target ) ) ) cEl = d.getElementsByTagName( target )[ 0 ];
		cEl.style.fontSize = arFontSize[ size ];
		for ( i = 0 ; i < tags.length ; i++ ) {
			cTags = cEl.getElementsByTagName( tags[ i ] );
			 for ( j = 0 ; j < cTags.length ; j++ ) cTags[ j ].style.fontSize = arFontSize[ size ];
		}
	}
	
	
function showTab (tabId){
	
	switch (tabId) {   
	
	case 'tab1':
		//show the tab
		document.getElementById('tab1').className="showTab"; 
		document.getElementById("tab2").className="hideObj"; 
		document.getElementById("tab3").className="hideObj"; 
		//show tab content
		document.getElementById('tabCtn1').className="tabCtn"; 
		document.getElementById("tabCtn2").className="hideObj"; 
		document.getElementById("tabCtn3").className="hideObj"; 
		break;   
	case 'tab2': 
		document.getElementById('tab1').className="hideObj"; 
		document.getElementById("tab2").className="showTab"; 
		document.getElementById("tab3").className="hideObj"; 
		document.getElementById('tabCtn1').className="hideObj"; 
		document.getElementById("tabCtn2").className="tabCtn"; 
		document.getElementById("tabCtn3").className="hideObj"; 
		break;   
	case 'tab3': 
		document.getElementById('tab1').className="hideObj"; 
		document.getElementById("tab2").className="hideObj"; 
		document.getElementById("tab3").className="showTab"; 
		document.getElementById('tabCtn1').className="hideObj";  
		document.getElementById("tabCtn2").className="hideObj"; 
		document.getElementById("tabCtn3").className="tabCtn";
		break;   
}
	return false;
	}