// JavaScript Document

function changeBgColor(idx) {
	var body=document.getElementsByTagName('body')[0];
	if (idx == 0) {
		body.style.background="#023c7c url(images/sitewide/bg.wrapper_1.jpg) no-repeat top center";
	}
 	else if (idx == 1) {
		body.style.background="#023c7c url(images/sitewide/bg.wrapper_2.jpg) no-repeat top center";
	}
 	else if (idx == 2) { 
		body.style.background="#023c7c url(images/sitewide/bg.wrapper_3.jpg) no-repeat top center";
	}
 	else if (idx == 3) { 
		body.style.background="#023c7c url(images/sitewide/bg.wrapper_4.jpg) no-repeat top center";
	}
};