// JavaScript Document
/*++++++++++++++++++++++++++++++++++++++
# 说明:首页滚动JS
# 版本:1.0
# 作者:Cz
# 日期:2010-09-15
#++++++++++++++++++++++++++++++++++++++*/

function media_roll_core(roll_div){
	var lost_height=40;
	var pt=document.getElementById(roll_div);
	
	for(i=0;i<=lost_height;i++){
		if(pt){
			//document.title="ScrollTop:"+pt.scrollTop+"Lost:"+(pt.scrollHeight-pt.scrollTop);
			if((pt.scrollHeight-pt.scrollTop)<=40){
				pt.scrollTop=0;
				break;
			}
			else
			{
				pt.scrollTop+=1;
			}
		}
	}
	
	
	
	
}

function media_roll(){
	var _time=5000;
	var pt=document.getElementById('main_link_k1');
	//pt.innerHTML+=pt.innerHTML;
	
	setInterval(function(){media_roll_core('main_link_k1');},_time);
}







var user_core_time=null;
var user_core_state=0;
var user_core_tmp=0;
var user_core_step=4;//不要更改，内核步进
var user_core_range=174;//更加不要修改
function users_core(opt){
	//document.title="C";
	if(user_core_state==0 && user_core_tmp==0){
		clearInterval(user_core_time);
		return 0;
	}
	if(user_core_tmp<user_core_range){
		var pt=document.getElementById("center_gamepicture_gd2");
		if(opt=="left"){
			pt.scrollLeft+=user_core_step;
		}
		else if(opt=="right"){
			pt.scrollLeft-=user_core_step;
		}
		user_core_tmp+=user_core_step;
	}
	else{
		user_core_tmp=0;
		user_core_state=0;
	}
	//document.title="--------C_O scrollLeft:"+pt.scrollLeft+"  scrollWidth:"+pt.scrollWidth+"  user_core_tmp:"+user_core_tmp;
}


function users_left_roll(){
	if(user_core_tmp!=0){//Fuck!Running...
		return 0;
	}
	var pt=document.getElementById("center_gamepicture_gd2");
	if(pt.scrollWidth>pt.scrollLeft){
		user_core_state=1;
		clearInterval(user_core_time);
		user_core_time=setInterval(function(){users_core("left");},5);
	}
	
	
}

function users_right_roll(){
	if(user_core_tmp!=0){//Fuck!Running...
		return 0;
	}
	var pt=document.getElementById("center_gamepicture_gd2");
	if(pt.scrollLeft!=0){
		user_core_state=1;
		clearInterval(user_core_time);
		user_core_time=setInterval(function(){users_core("right");},1);
	}
}