var intPage = 0;
var intBookSize = 0;
var intBookSize = 0;
var intOn = 0;
var intImgSize = 0;
var intBookEnd = 0;
var intStepSize = intImgSize/10;
var intNitro = 1;
function hop(intGo){
	intNitro = intPage-intGo;
	if(intNitro<0)
		intNitro = intNitro * -1;
	if(intPage>intGo){
		intPage = intGo + 1;
		mouseLeft();
	}else if(intPage<intGo){
		intPage = intGo - 1;
		mouseRight();
	}
}
function mouseLeft(){
	if(intPage>0){
		intPage--;
		intOn = 1;
		rollin();
	}else{
		intOn = 1;
		rolltoend();
	}
}
function mouseRight(){
	if(intPage<intBookSize-1){
		intPage++;
		intOn = 2;
		rollin();
	}else{
		intOn = 2;
		rolltoend();
	}
}
function rollin(){
	if(intOn>0){
		var obj1 = document.getElementById("display_zone");
		var intStep = intStepSize * intNitro;
		var intT = intPage;
		if(intOn==1){
			intStep = intStep * -1;
			intBookEnd = intPage * intImgSize;
			if(obj1.scrollLeft<=intBookEnd){
				intOn = 0;
				intNitro = 1;
				
			}else{
				obj1.scrollLeft = obj1.scrollLeft + intStep;
				setTimeout("rollin()",10);
			}
		}else{
			intBookEnd = intPage * intImgSize;
			if(obj1.scrollLeft>=intBookEnd){
				intOn = 0;
				intNitro = 1;
			}else{
				obj1.scrollLeft = obj1.scrollLeft + intStep;
				setTimeout("rollin()",10);
			}
		}
	}
}

function rolltoend(){
	if(intOn>0){
		var obj1 = document.getElementById("display_zone");
		var intStep = 210;
		var intT = intPage;
		if(intOn==2){
			intStep = intStep * -1;
			intBookEnd = 0;
			if(obj1.scrollLeft<=intBookEnd){
				intPage = 0;
				intOn = 0;
				
			}else{
				obj1.scrollLeft = obj1.scrollLeft + intStep;
				setTimeout("rolltoend()",10);
			}
		}else{
			intBookEnd = intBookSize - 1;
			intBookEnd = intBookEnd * intImgSize;
			if(obj1.scrollLeft>=intBookEnd){
				intPage = intBookSize - 1;
				intOn = 0;
			}else{
				obj1.scrollLeft = obj1.scrollLeft + intStep;
				setTimeout("rolltoend()",10);
			}
		}
	}
}