颜色选择器页面特效__脚本特效_后台技术飞飞Asp技术乐园

颜色选择器

时间： 2008-08-31 23:57:20　阅读次数：2293

颜色选择器

<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>网页特效|www.ffasp.com 飞飞Asp乐园|---推荐另一种色带制作方法</title>
</head>

<body>

var iW = '70';//共有6种颜色，每种颜色的宽为iW。iW*6为色带的宽。
var iH = '400';//iH为色带的高。

var H,S,V;

var R,G,B;

function HSVtoRGB(){
var r,g,b;
var k = (H%60)/60;
var c1 = V*(1-S);
var c2 = V*(1-S*k);
var c3 = V*(1-S*(1-k));
switch(parseInt(H/60)){
	case 0 : r=V,g=c3;b=c1; break;
	case 1 : r=c2,g=V;b=c1; break;
	case 2 : r=c1,g=V;b=c3; break;
	case 3 : r=c1,g=c2;b=V; break;
	case 4 : r=c3,g=c1;b=V; break;
	case 5 : r=V,g=c1;b=c2; break;
	}
R = parseInt(r*255);
G = parseInt(g*255);
B = parseInt(b*255);
Info2.value = 'R:'+R+'  G:'+G+'   B:'+B;
}

function RGBtoHTML(){
var r=(R>=16)?R.toString(16):('0'+R.toString(16));
var g=(G>=16)?G.toString(16):('0'+G.toString(16));
var b=(B>=16)?B.toString(16):('0'+B.toString(16));
var rgb=r+g+b;
Info3.value='HTML #'+rgb.toUpperCase();
ColorDiv.style.background = '#'+rgb;
}

function window.onload(){
var iHtml = '';
var iL = (document.body.offsetWidth-6*iW)/2;
var iT = (document.body.offsetHeight-iH)/2;
var RainBow = [255,0,0,  255,255,0,  0,255,0,  0,255,255,  0,0,255,  255,0,255,  255,0,0];
for(var i=0;i<6;i++){
	var R1 = RainBow[i*3];
	var G1 = RainBow[i*3+1];
	var B1 = RainBow[i*3+2];
	var R2 = RainBow[(i+1)*3];
	var G2 = RainBow[(i+1)*3+1];
	var B2 = RainBow[(i+1)*3+2];
	iHtml += "<span style='position:absolute;left:"+(i*iW+iL)+";top:"+iT+";width:"+iW+";height:"+iH+";background:rgb("+R1+","+G1+","+B1+");'></span><span style='position:absolute;left:"+(i*iW+iL)+";top:"+iT+";width:"+iW+";height:"+iH+";background:rgb("+R2+","+G2+","+B2+");filter:alpha(opacity=0,finishopacity=100,Style=1);'></span>"
	}
iHtml += "<span style=position:absolute;left:"+iL+";top:"+iT+";width:"+iW*6+";height:"+iH/2+";background:rgb(255,255,255);filter:alpha(opacity=100,finishOpacity=0,style=1,starty=0,finishy=100,startx=0,finishx=0)></span><span style=position:absolute;left:"+iL+";top:"+(iT+iH/2)+";width:"+iW*6+";height:"+iH/2+";background:rgb(0,0,0);filter:alpha(opacity=0,finishOpacity=100,style=1,starty=0,finishy=100,startx=0,finishx=0)></span><span style='position:absolute;left:"+iL+";top:"+iT+";width:"+iW*6+";height:"+iH+";' onmousemove=HSV()></span>"
document.body.innerHTML += iHtml;
}
</script>

</body>

</html>

提示：您可以先修改部分代码再运行