var isIE6 = false;

$(document).ready(function(){
    browserTest();
    if (!isIE6) {
        var classes = ["pink","blue","green","orange"];
        var klass = classes[Math.floor(Math.random() * classes.length)];
    	$("body").addClass(klass);
    }
});

function browserTest() {
	function searchVersion(browser) {
		var dataString = navigator.userAgent;
		var index = dataString.indexOf(browser);
		if (index == -1) return;
		var bVersion = parseFloat(dataString.substring(index+browser.length+1));
		return bVersion.toString().split(".")[0];
	}
	isIE = jQuery.browser.msie;
	if (isIE) {	
		version = searchVersion("MSIE") || "";
		isIE6 = (version == 6) ? true : false;
	}
}