$(document).ready(function(){
        // Compare hash value of url with href attribute of anchor tag
        // If it is a match, don't hide the form.
         if ( window.location.hash == $(".show_hide").attr("href") )
                $("#contact-area").show();

        $(".show_hide").show();

	$('.show_hide').click(function(){
	        $("#contact-area").slideToggle(400,function(){
	        	if ( $("#contact-area").is(":visible") ){
	        	       window.location.hash = $(".show_hide").attr("href");
	        	} else {
	        	       window.location.hash = "#";
	        	}
	        });
	});
});