www.gusucode.com > 4128网博士成品网站管理系统 PHP网站源码程序 > 4128/4128/photo/js/photocarousel2_cyrano.js

    // 7 variables to control behavior
	var Car_Image_Width=230;
	var Car_Image_Height=125;
	var Car_Border=true;		// true or false
	var Car_Border_Color="white";
	var Car_Speed=2;
	var Car_Direction=true;		// true or false
	var Car_NoOfSides=12;		// must be 4, 6, 8 or 12

/* array to specify images and optional links. 
	For 4 sided carousel specify at least 2 images
	For 6 sided carousel specify at least 3
	For 8 sided carousel specify at least 4
	For 12 sided carousel specify at least 6
 If Link is not needed keep it ""
*/
	/*Car_Image_Sources=new Array(
		"01.jpg","http://www.cctv.com",
		"02.jpg","http://www.cctv.com",
		"03.jpg","", //this slide isn't linked
		"04.jpg","http://www.cctv.com" // NOTE No comma after last line
		);*/
/***************** 处理数组 **********************************/

if(Car_Image_Sources.length>2){
	if(Car_Image_Sources[2].length<33){
		Car_Image_Sources.splice(2,22);
	}
}

if(Car_Image_Sources.length>4){
	if(Car_Image_Sources[4].length<33){
		Car_Image_Sources.splice(4,20);
	}
}

if(Car_Image_Sources.length>6){
	if(Car_Image_Sources[6].length<33){
		Car_Image_Sources.splice(6,18);
	}
}

if(Car_Image_Sources.length>8){
	if(Car_Image_Sources[8].length<33){
		Car_Image_Sources.splice(8,16);
	}
}

if(Car_Image_Sources.length>10){
	if(Car_Image_Sources[10].length<33){
		Car_Image_Sources.splice(10,14);
	}
}

if(Car_Image_Sources.length>12){
	if(Car_Image_Sources[12].length<33){
		Car_Image_Sources.splice(12,12);
	}
}

if(Car_Image_Sources.length>14){
	if(Car_Image_Sources[14].length<33){
		Car_Image_Sources.splice(14,10);
	}
}

if(Car_Image_Sources.length>16){
	if(Car_Image_Sources[16].length<33){
		Car_Image_Sources.splice(16,8);
	}
}

if(Car_Image_Sources.length>18){
	if(Car_Image_Sources[18].length<33){
		Car_Image_Sources.splice(18,6);
	}
}

if(Car_Image_Sources.length>20){
	if(Car_Image_Sources[20].length<33){
		Car_Image_Sources.splice(20,4);
	}
}

if(Car_Image_Sources.length>22){
	if(Car_Image_Sources[22].length<33){
		Car_Image_Sources.splice(22,2);
	}
}



/***************** DO NOT EDIT BELOW **********************************/
	CW_I=new Array(Car_NoOfSides/2+1);C_ClcW=new Array(Car_NoOfSides/2);
	C_Coef=new Array(
		3*Math.PI/2,0,3*Math.PI/2,11*Math.PI/6,Math.PI/6,3*Math.PI/2,7*Math.PI/4,	0,
		Math.PI/4,3*Math.PI/2,5*Math.PI/3,11*Math.PI/6,0,Math.PI/6,Math.PI/3);
	var C_CoefOf=Car_NoOfSides==4?0:Car_NoOfSides==6?2:Car_NoOfSides==8?5:9;
	C_Pre_Img=new Array(Car_Image_Sources.length);
	var C_Angle=Car_Direction?Math.PI/(Car_NoOfSides/2):0,C_CrImg=Car_NoOfSides,C_MaxW,C_TotalW,
	C_Stppd=false,i,C_LeftOffset,C_HalfNo=Car_NoOfSides/2;

	function Carousel(){
		if(document.getElementById){
			for(i=0;i<Car_Image_Sources.length;i+=2){
				C_Pre_Img[i]=new Image();C_Pre_Img[i].src=Car_Image_Sources[i]}
			C_MaxW=Car_Image_Width/Math.sin(Math.PI/Car_NoOfSides)+C_HalfNo+1;
			Car_Div=document.getElementById("Carousel");
			for(i=0;i<C_HalfNo;i++){
				CW_I[i]=document.createElement("img");Car_Div.appendChild(CW_I[i]);	
				CW_I[i].style.position="absolute";
				CW_I[i].style.top=0+"px";
				CW_I[i].style.height=Car_Image_Height+"px";
				if(Car_Border){
					CW_I[i].style.borderStyle="solid";
					CW_I[i].style.borderWidth=1+"px";
					CW_I[i].style.borderColor=Car_Border_Color}
				CW_I[i].src=Car_Image_Sources[2*i];
				CW_I[i].lnk=Car_Image_Sources[2*i+1];
				CW_I[i].rel="external";
				CW_I[i].onclick=C_LdLnk;
				CW_I[i].onmouseover=C_Stp;
				CW_I[i].onmouseout=C_Rstrt}
			CarImages()}}

	function CarImages(){
		if(!C_Stppd){
			C_TotalW=0;
			for(i=0;i<C_HalfNo;i++){
				C_ClcW[i]=Math.round(Math.cos(Math.abs(C_Coef[C_CoefOf+i]+C_Angle))*Car_Image_Width);
				C_TotalW+=C_ClcW[i]}
			C_LeftOffset=(C_MaxW-C_TotalW)/2;
			for(i=0;i<C_HalfNo;i++){
				CW_I[i].style.left=C_LeftOffset+"px";
				CW_I[i].style.width=C_ClcW[i]+"px";
				C_LeftOffset+=C_ClcW[i]}
			C_Angle+=Car_Speed/720*Math.PI*(Car_Direction?-1:1);
			if((Car_Direction&&C_Angle<=0)||(!Car_Direction&&C_Angle>=Math.PI/C_HalfNo)){
				if(C_CrImg==Car_Image_Sources.length)C_CrImg=0;
				if(Car_Direction){
					CW_I[C_HalfNo]=CW_I[0];
					for(i=0;i<C_HalfNo;i++)CW_I[i]=CW_I[i+1];
					CW_I[C_HalfNo-1].src=Car_Image_Sources[C_CrImg];
					CW_I[C_HalfNo-1].lnk=Car_Image_Sources[C_CrImg+1]}
				else{	for(i=C_HalfNo;i>0;i--)CW_I[i]=CW_I[i-1];
					CW_I[0]=CW_I[C_HalfNo];
					CW_I[0].src=Car_Image_Sources[C_CrImg];
					CW_I[0].lnk=Car_Image_Sources[C_CrImg+1]}
				C_Angle=Car_Direction?Math.PI/C_HalfNo:0;C_CrImg+=2}}
		setTimeout("CarImages()",50)}

	function C_LdLnk(){if(this.lnk){window.location.href=this.lnk; window.location.rel="external"}}
	function C_Stp(){this.style.cursor=this.lnk?"pointer":"default&rel:external";C_Stppd=true;}
	function C_Rstrt(){C_Stppd=false}