function isOdd(num) {
  return (num % 2);
}

function buildHTML(tag, text, properties){
	if(!tag){tag='';}
	text=text?text:false;properties=properties?properties:false;if(tag=='img'||tag=='input'||tag=='area'){el=properties?'<'+tag+' '+properties+' />':'<'+tag+' />';}else if(tag!='img'&&text){el=properties?'<'+tag+' '+properties+'>'+text+'</'+tag+'>':'<'+tag+'>'+text+'</'+tag+'>';}else if(text==false){el=properties?'<'+tag+' '+properties+'> </'+tag+'>':'<'+tag+'> </'+tag+'>';}
	return el;
}

function getQueryVariable(variable) {
    var query = window.location.search.substring(1);
    var vars = query.split("&");
    for (var i=0;i<vars.length;i++) {
        var pair = vars[i].split("=");
        if (pair[0] == variable) {return pair[1];}
    }
} 

function twoDigit(num){
	if (num < 10) {
		num = '0' + num.toString();	
	}
	
	return num;
}