var allowAllPopUps;
var is_IE_5_5;

detect_IE_version();

function detect_IE_version(){
	
	var agt=navigator.userAgent.toLowerCase();
	var is_major = parseInt(navigator.appVersion);
	var is_minor = parseFloat(navigator.appVersion);

	var is_ie      = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
	var is_ie3     = (is_ie && (is_major < 4));
	var is_ie4     = (is_ie && (is_major == 4) && (agt.indexOf("msie 4")!=-1) );
	var is_ie4up   = (is_ie && (is_major >= 4));
	var is_ie5     = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
	var is_ie5_5   = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
	var is_ie5up   = (is_ie && !is_ie3 && !is_ie4);
	var is_ie5_5up = (is_ie && !is_ie3 && !is_ie4 && !is_ie5);
	var is_ie6     = (is_ie && (is_major == 4) && (agt.indexOf("msie 6.")!=-1));
	var is_ie6up   = (is_ie && !is_ie3 && !is_ie4 && !is_ie5 && !is_ie5_5);

	if(!is_ie){
		//Browser is not IE
		allowAllPopUps = false;	
		is_IE_5_5 = false;
	}else if(is_ie5_5 || is_ie5_5up || is_ie6 || is_ie6up ){
		//Browser is IE 5.5+
		allowAllPopUps = true;
		is_IE_5_5 = true;
	}else{
		//Browser is IE 5.0 or less
		allowAllPopUps = false;
		is_IE_5_5 = false;
	}
}