//TDI Page Tools and Tabbed Menu - 2010 Design

//         Text sizing version .9                    //

var sizesArray = new Array("96%", "97%", "98%", "99%", "100%", "101%", "102%", "103%", "104%")
var sizePointer;
var ruleCounter;
// ruleCounter is used for Mozilla due to the necessity to write the new CSS rule in the last position so that it is applied.


if (getCookie("sizePref") != "") {
	sizePointer = Number(getCookie("sizePref"));
	// now apply the font
	if (document.styleSheets[0].cssRules) {
		ruleCounter = document.styleSheets[0].cssRules.length
	// Mozilla
	document.styleSheets[0].insertRule("* {font-size: " + sizesArray[sizePointer] + ";}", ruleCounter)
		//ruleCounter = ruleCounter + 1
	}
	else {
	//IE
	document.styleSheets[0].addRule("*", "{font-size: " + sizesArray[sizePointer] + ";}")
	}
}
else {
	sizePointer = 4;
}
var ie=false;
if (navigator.appName.indexOf("Microsoft") != -1){
	ie=true;
}
	


function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=")
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1 
    c_end=document.cookie.indexOf(";",c_start)
    if (c_end==-1) c_end=document.cookie.length
    return unescape(document.cookie.substring(c_start,c_end))
    } 
  }
return "";
}

function resetFont() {
    sizePointer = 3;
    largerFont();
}

function largerFont () {
	
	if (document.styleSheets[0].cssRules) {
	// Mozilla
		if (document.styleSheets[0].cssRules[0]) {
			if (sizePointer != 8) {
				ruleCounter = document.styleSheets[0].cssRules.length;
				sizePointer = sizePointer + 1;
				document.styleSheets[0].insertRule("* {font-size: " + sizesArray[sizePointer] + ";}", ruleCounter);
				document.cookie = 'sizePref='+ sizePointer + '; path=/; domain=.tdi.texas.gov';
			}
		}	
	}
	
	else if (document.styleSheets[0].rules) {
	// IE
		if (sizePointer < 8) {
			sizePointer = sizePointer + 1;
			document.cookie = 'sizePref='+ sizePointer + '; path=/; domain=.tdi.texas.gov';
			document.styleSheets[0].addRule("*", "{font-size: " + sizesArray[sizePointer] + ";}")
			}
		}		
	}

function smallerFont () {	
	if (document.styleSheets[0].cssRules) {
		
	// Mozilla
		if (document.styleSheets[0].cssRules[0]) {	
			if (sizePointer != 0) {
				sizePointer = sizePointer - 1;
				ruleCounter = document.styleSheets[0].cssRules.length;
				document.styleSheets[0].insertRule("* {font-size: " + sizesArray[sizePointer] + ";}", ruleCounter)
				document.cookie = 'sizePref='+ sizePointer + '; path=/; domain=.tdi.texas.gov';
			}
		}	
	}
	
	else if (document.styleSheets[0].rules) {
	// IE		
		if (sizePointer > 0) {
			sizePointer = sizePointer - 1;
			document.cookie = 'sizePref='+ sizePointer + '; path=/; domain=.tdi.texas.gov';
			document.styleSheets[0].addRule("*", "{font-size: " + sizesArray[sizePointer] + ";}")
		}
	}
	
}