var on_load_functions = new Array();
			
function add_on_load_function (func)
{
	on_load_functions[on_load_functions.length]	= func;				
}
function on_page_load(event)
{
 	var i=0;
	for(i=0;i<on_load_functions.length;i++)
	{
		on_load_functions[i](event);
	}
}				
window.onload = on_page_load;