jQuery.fn.extend({
haccordion: function(params){
var jQ = jQuery;
var params = jQ.extend({
speed: 500,
headerclass: "header",
contentclass: "content",
contentwidth: 785,
openone:0
},params);
return this.each(function(index){
jQ("."+params.headerclass,this).each(function(index){
if(index == params.openone){
var p = jQ(this).parent()[0];
p.opened = this;
jQ(this).next("div."+params.contentclass).animate({
width: params.contentwidth + "px"
}, params.speed);
}
}).click(function(){
var p = jQ(this).parent()[0];
if (p.opened != "undefined"){
jQ(p.opened).next("div."+params.contentclass).animate({
width: "0px"
},params.speed);
}
p.opened = this;
jQ(this).next("div."+params.contentclass).animate({
width: params.contentwidth + "px"
}, params.speed);
});
});
}
}); 
