// Check if browser is IE
var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;    // true if we're on ie
 
   if (isIE){
	  	var spacer = '<img src="spacer.gif" width="7" height="8">';
	}
	else {  
    	var spacer = '<img src="spacer.gif" width="9" height="8">';
	}
	
    document.write(spacer);