// !!!very important, fix the jquery bug, slideup has "flash content" bug
// slideUP from height 1 instead changing from height 0
// -- start
jQuery.fx.prototype.originalCustom = jQuery.fx.prototype.custom; 
jQuery.fx.prototype.custom = function(from,to,unit) { 
        if (this.prop=='height') { 
                to = to || 1; 
                from = from || 1; 
        } 
        this.originalCustom(from,to,unit); 
}
// -- end