// JavaScript Document
function bgcheck() {

	
if (screen.width>1500) {
	document.body.style.backgroundImage="url(./images/bg1700.jpg)";
	return;
	}
	
if (screen.width>1400) {
	document.body.style.backgroundImage="url(./images/bg1450.jpg)";
	return;
	}
	
if (screen.width>1200) {
	document.body.style.backgroundImage="url(./images/bg1300.jpg)";
	return;
	}
	
if (screen.width>1000) {
	document.body.style.backgroundImage="url(./images/bg1100.jpg)";
	return;
	}
	
if (screen.width>790) {
	document.body.style.backgroundImage="url(./images/bg900.jpg)";
	return;
	}


}