window.onload=function(){onLoad()};onLoad=function(){initLegend();initCalculator();initDiscCalculator();}
initLegend=function(){if(document.getElementById&&document.getElementById('shemeLegend')){oSheme={'nLegend':document.getElementById('shemeLegend'),'aLabels':new Array()}
initLegendLabel('L');initLegendLabel('H');initLegendLabel('D');initLegendLabel('DD');}}
initLegendLabel=function(sLabel){if(oSheme&&document.getElementById&&document.getElementById('labelSheme'+sLabel)){document.getElementById('labelSheme'+sLabel).onmouseover=function(){legendMouseOver(sLabel);};document.getElementById('labelSheme'+sLabel).onmouseout=function(){legendMouseOut();};oSheme.aLabels.push(sLabel);if(document.getElementById('sheme'+sLabel)){doPreload(document.getElementById('sheme'+sLabel).src);}}}
legendMouseOver=function(sLabel){legendMouseOut();addClass(oSheme.nLegend,'label'+sLabel);}
legendMouseOut=function(){for(i in oSheme.aLabels){removeClass(oSheme.nLegend,'label'+oSheme.aLabels[i]);}}
initCalculator=function(){oCalculator={'oldWidth':document.getElementById('oldWidth'),'oldDiameter':document.getElementById('oldDiameter'),'oldProfile':document.getElementById('oldProfile'),'newWidth':document.getElementById('newWidth'),'newDiameter':document.getElementById('newDiameter'),'newProfile':document.getElementById('newProfile'),'oldL':document.getElementById('oldL'),'newL':document.getElementById('newL'),'deltaL':document.getElementById('deltaL'),'oldH':document.getElementById('oldH'),'newH':document.getElementById('newH'),'deltaH':document.getElementById('deltaH'),'oldD':document.getElementById('oldD'),'newD':document.getElementById('newD'),'deltaD':document.getElementById('deltaD'),'oldDD':document.getElementById('oldDD'),'newDD':document.getElementById('newDD'),'deltaDD':document.getElementById('deltaDD')}
oSpeedometer=new Array();var i=10;while(document.getElementById('speed'+i)){oSpeedometer[i]=document.getElementById('speed'+i);i+=10;}
applyCalculateEvent(oCalculator.oldWidth);applyCalculateEvent(oCalculator.oldDiameter);applyCalculateEvent(oCalculator.oldProfile);applyCalculateEvent(oCalculator.newWidth);applyCalculateEvent(oCalculator.newDiameter);applyCalculateEvent(oCalculator.newProfile);doCalculate();}
applyCalculateEvent=function(nNode){nNode.onchange=function(){doCalculate();};}
doCalculate=function(){var iOldL=oCalculator.oldWidth.value;var iNewL=oCalculator.newWidth.value;var iOldD=Math.round(oCalculator.oldDiameter.value*25.4);var iNewD=Math.round(oCalculator.newDiameter.value*25.4);var iOldDD=Math.round(oCalculator.oldWidth.value*oCalculator.oldProfile.value*0.02+oCalculator.oldDiameter.value*25.4);var iNewDD=Math.round(oCalculator.newWidth.value*oCalculator.newProfile.value*0.02+oCalculator.newDiameter.value*25.4);var iOldH=Math.round((iOldDD-iOldD)/2);var iNewH=Math.round((iNewDD-iNewD)/2);var iSpeedCoeff=iNewDD/iOldDD;setTextValue(oCalculator.oldL,iOldL);setTextValue(oCalculator.newL,iNewL);setTextValue(oCalculator.deltaL,iNewL-iOldL);setTextValue(oCalculator.oldH,iOldH);setTextValue(oCalculator.newH,iNewH);setTextValue(oCalculator.deltaH,iNewH-iOldH);setTextValue(oCalculator.oldD,iOldD);setTextValue(oCalculator.newD,iNewD);setTextValue(oCalculator.deltaD,iNewD-iOldD);setTextValue(oCalculator.oldDD,iOldDD);setTextValue(oCalculator.newDD,iNewDD);setTextValue(oCalculator.deltaDD,iNewDD-iOldDD);for(i in oSpeedometer){setTextValue(oSpeedometer[i],Math.round(i*iSpeedCoeff*10)/10);}}
initDiscCalculator=function(){if(document.getElementById&&document.getElementById('tireWidth')&&document.getElementById('tireDiameter')&&document.getElementById('tireProfile')&&document.getElementById('discDiameter')&&document.getElementById('discWidthMin')&&document.getElementById('discWidthMax')){oDiscCalculator={'tireWidth':document.getElementById('tireWidth'),'tireDiameter':document.getElementById('tireDiameter'),'tireProfile':document.getElementById('tireProfile'),'discDiameter':document.getElementById('discDiameter'),'discWidthMin':document.getElementById('discWidthMin'),'discWidthMax':document.getElementById('discWidthMax')}
applyCalculateDiscEvent(oDiscCalculator.tireWidth);applyCalculateDiscEvent(oDiscCalculator.tireDiameter);applyCalculateDiscEvent(oDiscCalculator.tireProfile);doCalculateDisc();}}
applyCalculateDiscEvent=function(nNode){nNode.onchange=function(){doCalculateDisc();};}
doCalculateDisc=function(){if(oDiscCalculator){var iWidth=oDiscCalculator.tireWidth.value;var iProfile=oDiscCalculator.tireProfile.value;var iDiameter=oDiscCalculator.tireDiameter.value;iWidthMin=(Math.round(((iWidth*((iProfile<50)?0.85:0.7))*0.03937)*2))/2;iWidthMax=(iWidthMin+1.5);setTextValue(oDiscCalculator.discDiameter,iDiameter);setTextValue(oDiscCalculator.discWidthMin,iWidthMin);setTextValue(oDiscCalculator.discWidthMax,iWidthMax);}}
setTextValue=function(nNode,sValue){sValue=String(sValue);sValue=sValue.replace(/\./,',');nNode.innerHTML=sValue;}
isClass=function(nNode,sClassName){return(nNode.className.indexOf(sClassName)>=0);}
addClass=function(nNode,sClassName){if(nNode.className){var aClass=nNode.className.split(' ');for(var i in aClass){if(sClassName==aClass[i]){sClassName='';}}
if(sClassName){aClass.push(sClassName);}
nNode.className=aClass.join(' ');}
else{nNode.className=sClassName;}}
removeClass=function(nNode,sClassName){if(nNode.className){var aClass=nNode.className.split(' ');for(var i in aClass){if(sClassName==aClass[i]){aClass.splice(i,1);break;}}
nNode.className=aClass.join(' ');}}
doPreload=function(sImg){var oPreload=new Image();oPreload.src=sImg;}