/*------------------------------------------------------------
	Document Text Sizer- Copyright 2003 - Taewook Kang.  All rights reserved.
	Coded by: Taewook Kang (txkang.REMOVETHIS@hotmail.com)
	Web Site: http://txkang.com
	Script featured on Dynamic Drive (http://www.dynamicdrive.com)
	
	Please retain this copyright notice in the script.
	License is granted to user to reuse this code on 
	their own website if, and only if, 
	this entire copyright notice is included.
--------------------------------------------------------------*/

//Specify affected tags. Add or remove from list:
var tgs = new Array('td','tr', 'div', 'input', 'select', 'font');//

//Specify spectrum of different font sizes:
//var szs = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );
//var szs = new Array( 'x-small','small','medium','large','x-large' );
var szs = new Array( '10px','12px','14px', '15px' );
var startSz = 1;

function print_font_sizes(name, f, def){
    var html = '';
    html += '<select name="'+name+'" id="'+name+'" onChange="'+f+'">';
    for(var t=0; t<szs.length; t++){
        html += '<option value="'+szs[t]+'"';
        if (def == szs[t])
            html += ' selected';
        html += '>'+szs[t]+'</option>';
    }
    html += '</select>';
    return html;
}

function set_font_event(trgt, val){
    set_preferences("font_size", val);
    font_size = val;

    set_font_size(trgt, val);

}

function ts( trgt,inc ) {
  //  return changeFontsize('', inc);
	if (!document.getElementById) return;
	var sz = startSz;
	
	sz += inc;
	if ( sz < 0 ) sz = 0;
	if ( sz > 3 ) sz = 3;
	startSz = sz;
    
    set_font_event(trgt, szs[ sz ]);
}

function set_font_size(trgt, size){
    var d = document,cEl = null,i,j,cTags;
	if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];

	cEl.style.fontSize = size;

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

/*
var firstCall = true;

function changeFontsize(fSize, increment) {
  if (firstCall) {
    firstCall = false;
    if (increment != "")
      changeFontsize('14', '');
  }
  if (document.getElementsByTagName) {
    tags = new Array ( "p", "li", "h2", "h3", "h4", "h5", "h6", "div", "td" );
    for (j=0; j<tags.length; j++) {
      var getElement = document.getElementsByTagName(tags[j]);
      var eachElement, currentFontSize, fontIncrease, newFontSize;
      for (i=0; i<getElement.length; i++) {
        eachElement = getElement[i];
        if (increment != "") {
          currentFontSize = parseInt(eachElement.style.fontSize);
          fontIncrease = parseInt(increment);
          newFontSize = currentFontSize + fontIncrease;
          }
        else if (fSize != "")
          newFontSize = parseInt(fSize);
        if (tags[j] == "li")
          eachElement.style.lineHeight = Math.round(newFontSize*1.2) + "px";
        else
          eachElement.style.lineHeight = Math.round(newFontSize*1.5) + "px";
        if (fSize != "") {
          switch(tags[j]) {
          case "h2": newFontSize += 3; break;
          case "h3": newFontSize += 2; break;
          case "h4": newFontSize += 1; break;
          case "h5": newFontSize += 1; break;
          case "h6": newFontSize += 1;
          }
        }
        eachElement.style.fontSize = newFontSize + "px";
//        setCookie('fontSize', newFontSize);
      }
    }
  }
}
*/


/*
function trial( trgt,inc ){

var d = document,cEl = null,sz = startSz,i,j,cTags;
	
	sz += inc;
	if ( sz < 0 ) sz = 0;
	if ( sz > 3 ) sz = 3;
	startSz = sz;

 setStyleByClass("*", "content", "fontSize", szs[ sz ]);   
}

// setStyleByClass: given an element type and a class selector,
// style property and value, apply the style.
// args:
//  t - type of tag to check for (e.g., SPAN)
//  c - class name
//  p - CSS property
//  v - value
var ie = (document.all) ? true : false;

function setStyleByClass(t,c,p,v){
	var elements;
	if(t == '*') {
		// '*' not supported by IE/Win 5.5 and below
		elements = (ie) ? document.all : document.getElementsByTagName('*');
	} else {
		elements = document.getElementsByTagName(t);
	}
	for(var i = 0; i < elements.length; i++){
		var node = elements.item(i);
		for(var j = 0; j < node.attributes.length; j++) {
			if(node.attributes.item(j).nodeName == 'class') {
				if(node.attributes.item(j).nodeValue == c) {
					eval('node.style.' + p + " = '" +v + "'");
				}
			}
		}
	}
}

*/