stylesheetTitles = new Array("small","medium","large"); //stores all the stylesheet "titles" in ascending order function increase() { if (textsize < stylesheetTitles.length-1) { textsize++; //increases counter var title = stylesheetTitles[textsize]; //gets the correct "title" of the stylesheet setActiveStyleSheet(title); //changes the stylesheet document.getElementById("minus").src="/pics/font_minus.gif"; //make sure minus is not grayed out //if(textsize == 0) { document.getElementById("sizebox").innerHTML = " Small "; } //if(textsize == 1) { document.getElementById("sizebox").innerHTML = " Medium "; } //if(textsize == 2) { document.getElementById("sizebox").innerHTML = " Large "; } if (textsize == stylesheetTitles.length-1) { document.getElementById("plus").src="/pics/font_plus.gif"; //gray out plus } } } function decrease() { if (textsize > 0) { textsize--; //decreases counter var title = stylesheetTitles[textsize]; //gets the correct "title" of the stylesheet setActiveStyleSheet(title); //changes the stylesheet document.getElementById("plus").src="/pics/font_plus.gif"; //make sure plus is not grayed out //if(textsize == 0) { document.getElementById("sizebox").innerHTML = " Small "; } //if(textsize == 1) { document.getElementById("sizebox").innerHTML = " Medium "; } //if(textsize == 2) { document.getElementById("sizebox").innerHTML = " Large "; } if (textsize == 0) { document.getElementById("minus").src="/pics/font_minus.gif"; //gray out minus } } } function setActiveStyleSheet(title) { var i, a, main; for(i=0; (a = document.getElementsByTagName("link")[i]); i++) //cycles through all "link" elements { if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) //checks to make sure you are looking at a stylesheet { a.disabled = true; //disables all stylesheets if(a.getAttribute("title") == title) a.disabled = false; //enables correct stylesheet by evaluating the "title" } } } window.onunload = function(e) { createCookie("textsize", textsize, 365); } function createCookie(name,value,days) { if (days) { var date = new Date(); date.setTime(date.getTime()+(days*24*60*60*1000)); var expires = "; expires="+date.toGMTString(); } else expires = ""; var textsizeString = String(value); //converts "textsize" to a string document.cookie = name+"="+textsizeString+expires+"; path=/"; //writes the cookie } function readCookie(name) { var nameEQ = name + "="; var ca = document.cookie.split(';'); for(var i=0;i < ca.length;i++) { var c = ca[i]; while (c.charAt(0)==' ') c = c.substring(1,c.length); if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); } return null; } var cookie = parseInt(readCookie("textsize")); //reads the cookie and extracts the preferred stylesheet's number textsize = (cookie ? cookie : 0); //checks to see if a cookie exists and gives "textsize" the correct value var title = stylesheetTitles[textsize]; //gets the preferred stylesheet's corresponding title setActiveStyleSheet(title, textsize); //sets the preferred stylesheet