function setVar(setVarName,setVarValue) {
	var setVarName = setVarName + "=";
	if (top.name.indexOf(setVarName) != -1)
		clearVar(setVarName);
	top.name = top.name + setVarName + setVarValue + ";";
}



function getVar(getVarName,varClearSelect) {
	if (top.name.indexOf(getVarName) != -1) {
		var nameHeadCut = top.name.substring(top.name.indexOf(getVarName),top.name.length);
		var stringStart = nameHeadCut.indexOf("=")+1;
		var stringEnd = nameHeadCut.indexOf(";",stringStart);
		if (varClearSelect)
			clearVar(getVarName);
		return nameHeadCut.substring(stringStart,stringEnd);
	} else
		return "";
}



function clearVar(clearVarName) {
	var clearVarName = clearVarName + "=";
	var clearValue = getVar(clearVarName);

	if (top.name.indexOf(clearVarName) > 0)
		var varHead = top.name.substring(0,top.name.indexOf(clearVarName));
	else
		var varHead = "";
	var footStart = top.name.indexOf(clearVarName) + clearVarName.length + clearValue.length +1;
	var varFoot = top.name.substring(footStart,top.name.length);
	top.name = varHead + varFoot;
}