// JavaScript Document
function bgWidth() {
	//alert(winwidth);
	var winwidth = window.innerWidth;
	var bg_photo = document.getElementById("bg_photo");
	
	if (bg_photo != null)
		//alert(bg_photo);
		if (winwidth>1068) {
			bg_photo.style.width = '100%';
			bg_photo.style.height = ((winwidth*856)/1400) + 'px';
		}
		
	else 
		bg_photo.style.width = 1068 + 'px';
		bg_photo.style.height = ((1068*856)/1400) + 'px';
		//alert("no sirve");	

}