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36楼
发表于 2004-5-27 17:07
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让连接不停的变色
<SCRIPT language=Javascript src="fade.js"></SCRIPT>
演示 http://www.wooshow.com/dw/demo/ln/1.htm
fade.js代码
- /*************
- **** <config>
- **/
- startColor = "#4D4D4D"; // 颜色可以该
- endColor = "#ffffff"; // MouseOver link color
- stepIn = 10; // delay when fading in
- stepOut = 20; // delay when fading out
- /*
- ** set to true or false; true will
- ** cause all links to fade automatically
- ***/
- autoFade = true;
- /*
- ** set to true or false; true will cause all CSS
- ** classes with "fade" in them to fade onmouseover
- ***/
- sloppyClass = true;
- /**
- **** </config>
- **************/
- /*************
- **** <install>
- **
- **
- **** </install>
- **************/
- hexa = new makearray(16);
- for(var i = 0; i < 10; i++)
- hexa[i] = i;
- hexa[10]="a"; hexa[11]="b"; hexa[12]="c";
- hexa[13]="d"; hexa[14]="e"; hexa[15]="f";
- document.onmouseover = domouseover;
- document.onmouseout = domouseout;
- startColor = dehexize(startColor.toLowerCase());
- endColor = dehexize(endColor.toLowerCase());
- var fadeId = new Array();
- var timerID = 0;
- var theElement,theTagName,theClassName,theUniqueID
- function dehexize(Color){
- var colorArr = new makearray(3);
- for (i=1; i<7; i++){
- for (j=0; j<16; j++){
- if (Color.charAt(i) == hexa[j]){
- if (i%2 !=0)
- colorArr[Math.floor((i-1)/2)]=eval(j)*16;
- else
- colorArr[Math.floor((i-1)/2)]+=eval(j);
- }
- }
- }
- return colorArr;
- }
- function domouseover() {
- if(document.all) {
- clearTimeout(timerID);
- theElement = event.srcElement;
- theTagName = theElement.tagName;
- theClassName = theElement.className;
- theUniqueID = theElement.uniqueID;
- if ((theTagName == "A" && autoFade) || theClassName == "fade" || (sloppyClass && theClassName.indexOf("fade") != -1)) {
- //alert(theElement);
- fade(startColor,endColor,theUniqueID,stepIn);
- timerID = setTimeout('pulsedown()',500);
- }
- }
- }
- function pulseup() {
- if(document.all) {
- clearTimeout(timerID);
- if ((theTagName == "A" && autoFade) || theClassName == "fade" || (sloppyClass && theClassName.indexOf("fade") != -1)) {
- //alert(theElement);
- fade(startColor,endColor,theUniqueID,stepIn);
- timerID = setTimeout('pulsedown(theElement)',500);
- }
- }
- }
- function pulsedown(theElement) {
- if (document.all) {
- clearTimeout(timerID);
- if ((theTagName == "A" && autoFade) || theClassName == "fade" || (sloppyClass && theClassName.indexOf("fade") != -1)) {
- //alert(theElement);
- fade(endColor,startColor,theUniqueID,stepOut);
- timerID = setTimeout('pulseup()',500);
- }
- }
- }
- function domouseout() {
- if (document.all) {
- clearTimeout(timerID);
- var srcElement = event.srcElement;
- if ((srcElement.tagName == "A" && autoFade) || srcElement.className == "fade" || (sloppyClass && srcElement.className.indexOf("fade") != -1))
- fade(endColor,startColor,srcElement.uniqueID,stepOut);
- }
- }
- function makearray(n) {
- this.length = n;
- for(var i = 1; i <= n; i++)
- this[i] = 0;
- return this;
- }
- function hex(i) {
- if (i < 0)
- return "00";
- else if (i > 255)
- return "ff";
- else
- return "" + hexa[Math.floor(i/16)] + hexa[i%16];}
- function setColor(r, g, b, element) {
- var hr = hex(r); var hg = hex(g); var hb = hex(b);
- element.style.color = "#"+hr+hg+hb;
- }
- function fade(s,e, element,step){
- var sr = s[0]; var sg = s[1]; var sb = s[2];
- var er = e[0]; var eg = e[1]; var eb = e[2];
- if (fadeId[0] != null && fade[0] != element){
- setColor(sr,sg,sb,eval(fadeId[0]));
- var i = 1;
- while(i < fadeId.length){
- clearTimeout(fadeId[i]);
- i++;
- }
- }
- for(var i = 0; i <= step; i++) {
- fadeId[i+1] = setTimeout("setColor(Math.floor(" +sr+ " *(( " +step+ " - " +i+ " )/ " +step+ " ) + " +er+ " * (" +i+ "/" +
- step+ ")),Math.floor(" +sg+ " * (( " +step+ " - " +i+ " )/ " +step+ " ) + " +eg+ " * (" +i+ "/" +step+
- ")),Math.floor(" +sb+ " * ((" +step+ "-" +i+ ")/" +step+ ") + " +eb+ " * (" +i+ "/" +step+ ")),"+element+");",i*step);
- }
- fadeId[0] = element;
- }
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