var mw_cn=false;function imageLoaderPush(b){var a=new Image();a.src=b};function changeImage(b,a){if(document.images&&document.images[b]){document.images[b].src=a;return a}}function loadImg1(){$("#imgBrator1").attr("src",$brator1.val());$("#algwrapper1").css("display","block")}function loadImg2(){$("#imgBrator2").attr("src",$brator2.val());$("#algwrapper2").css("display","block")}function loadImg3(){$("#imgBrator3").attr("src",$brator3.val());$("#algwrapper3").css("display","block")}$(window).ready(function(){setUp();if(mw_cn){var e=new String(window.top.location.href);var d=e.indexOf("mathwarehouse.com")+new String("mathwarehouse.com").length;e="http://www.mathwarehouse.cn.com"+e.substr(d);var g='<a href="'+e+'" ><img style="margin-left:20px;" src="http://www.mathwarehouse.com/images/china-flag.png" /></a>';$("span#china").append(g)}var a=$("div.buttonNext , div.buttonPrevious , div.blueBttn");a.live("mouseout",function(h){$(h.target).removeClass("blueBttnOver")});a.live("mouseover",function(h){$(h.target).addClass("blueBttnOver")});var f=new Image();f.src="http://www.mathwarehouse.com/ad-urls/algebrator/Algebrator-400x292.gif";var c;$brator1=$("#brator1");c=$("#imgBrator1");if($brator1[0]!=undefined){setTimeout("loadImg1()",1600)}$brator2=$("#brator2");if($brator2[0]!=undefined){setTimeout("loadImg2()",2500)}$brator3=$("#brator3");if($brator3[0]!=undefined){setTimeout("loadImg3()",4500)}$txtChangers=$("td.textChange");$enlarger=$("td#enLarge");if($enlarger[0]!=undefined){$enlarger.bind("click",function(){txtChanger("+")});$("td#decraseTxt").click(function(){txtChanger("-")});$("td#bldTxt").click(function(){txtChanger("bold")})}$txtChangers.bind("mouseover",function(){$(this).removeClass("textChange");$(this).addClass("textChangeOver")});$txtChangers.bind("mouseout",function(){$(this).removeClass("textChangeOver");$(this).addClass("textChange")});if(mw_engagegement!="undefined"){var b='<div class="borderDiv">';b+='<b class="subTitle033" style="font-style:italic;font-size:14px;">'+mw_engagegement+"</b>";b+="<blockquote>";b+='If so, feel free to ask it on <a class="askUs" href="http://www.mathwarehouse.com/ask/questions">free math help board</a>! ';b+="</blockquote>";b+="</div>";$("div.siteEngagement").html(b)}});var mysize=16;function txtChanger(c){var a,b=new Array();if(c=="+"){mysize++}else{if(c=="-"){mysize--}}if(mysize<36&&mysize>9){var d=mysize+"px";if(document.getElementById("tdMain")){a=document.getElementById("tdMain")}if(c=="bold"){a.style.fontWeight="bold"}else{a.style.fontSize=d}for(i=0;i<a.getElementsByTagName("td").length;i++){b=a.getElementsByTagName("td").item(i);if(c=="bold"){b.style.fontWeight="bold"}else{b.style.fontSize=d}}}}function setUp(){var e=10;var c=(c!=null&&c!=undefined?c:null);if(c!=null){if(c==6){e=15}else{if(c==7){e=50}else{if(c>7){e=90}}}if(c>5){$("div.leftSkyScraper").css("padding-top",e+"px")}}initTabbedMenus();var a=$("img#mwhomeimg");a.bind("mouseover",function(){a[0].src="http://static2.mathwarehouse.com/images/logo4b.gif"});a.bind("mouseout",function(){a[0].src="http://static2.mathwarehouse.com/images/logo4.gif"});togs=$("td.togOut");var b=togs.parent().parent().parent();var d=b.siblings(".hidden");togs.bind("mouseover",function(f){$(f.target).removeClass("togOut");$(f.target).addClass("togOver")});togs.bind("mouseout",function(f){$(f.target).removeClass("togOver");$(f.target).addClass("togOut")});togs.bind("click",function(g){var f=$(g.target);var h=$(g.target).parent().parent().parent().next();if(h==null){return}$(g.target).css("display","none");$(g.target).unbind("click");$(g.target).unbind("mouseout");$(g.target).unbind("mouseover");if(h.css("display")!="block"){h.show("fast")}if(h.css("visibility")!="visible"){h.css("opacity",0.1);h.css("visibility","visible");h.animate({opacity:1},500,null)}})}var togs;function register(f,j,a){var b=$("#"+j);var e=b.get(0);var h=false;var g="";if(f=="CHANGE_IMG"){var k=a[1];var c=$("#"+a[0]);var d=c.get(0);b.bind("click",{obj:j},function(){c.fadeOut("fast");d.src=k;c.fadeIn("fast")})}else{if(f=="_CLICK_"){if($.isFunction(a[0])){b.bind("click",{obj:j},a[0])}else{if(GLOBAL_DEBUG){alert("register2() mode="+f+", dataArr[0] != function")}}}else{if(f=="_MOUSE_OVER_"){if($.isFunction(a[0])){b.bind("mouseover",{obj:j},a[0])}else{if(GLOBAL_DEBUG){alert("register2() mode="+f+", dataArr[0] != function")}}}else{if(f=="_MOUSE_OUT_"){if($.isFunction(a[0])){b.bind("mouseout",{obj:j},a[0])}else{if(GLOBAL_DEBUG){alert("register2() mode="+f+", dataArr[0] != function")}}}else{if(f=="_CHANGE_"){if($.isFunction(a[0])){b.bind("change",{obj:j},a[0])}else{if(GLOBAL_DEBUG){alert("register2() mode="+f+", dataArr[0] != function")}}}}}}}}function initTabbedMenus(){var d="state-1.gif";var c="state-2.gif";var a="http://static2.mathwarehouse.com/images/tabs/step-";var e=0.6;function b(f){var k=f.attr("src")+"";var h=k.substring(k.indexOf("step-")+"step-".length,k.indexOf("_state-"));var j=parseInt(k.substring(k.indexOf(".gif")-1,k.indexOf(".gif")));if(isNaN(j)){alert("invalid state for tabbed menu");return}j=(j==1?2:1);var g=(a+h+"_"+(j==1?d:c));f[0].src=g}$("div.steps").each(function(){$(this).find("ul > li").css("opacity",e);$(this).find("ul > li:first-child").css("opacity",1);$(this).find("ul > li:first-child img").css("margin-bottom","-1px");$(this).find("div.explanations > div").css("display","none");$(this).find("div.explanations > div:first-child ").css("display","block");$(this).find("ul > li img").bind("mouseover",function(){b($(this))});$(this).find("ul > li img").bind("mouseout",function(){b($(this))});$(this).find("ul > li img").bind("click",function(){var g=$(this).attr("src");$(this).parents("ul").find("img").css("margin-bottom","0");$(this).css("margin-bottom","-1px");$(this).parent().siblings().css("opacity",e);$(this).parent().css("opacity",1);var f=g.substring(g.indexOf("step-")+"step-".length,g.indexOf("_state-"));$(this).parents("div.steps").find("div.explanations > div").css("display","none");$(this).parents("div.steps").find("div.explanations > div.stp"+f).css("display","block")})})};