HTML / JavaScript Dynamic Inline XBM Image Generation

A whopping people have visited this page since tea-time yesterday. Click Reload to see the number magically change.

<HTML> <HEAD> <TITLE>Random Hit Count</TITLE> <SCRIPT> function setHits() { RandNum = new randomNumberGenerator(); val = RandNum.next() + "" val = val.substring (2, 12) PicSize = "HEIGHT=16 WIDTH=8 ALIGN='absmiddle'>"; Digit = new Array(); Head = "#define count_width 8\n#define count_height 16\nstatic char count_bits[] = {" Digit[0]=Head+"0xff,0xff,0xff,0xc3,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0x99,0xc3,0xff,0xff,0xff};" Digit[1]=Head+"0xff,0xff,0xff,0xcf,0xc7,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xcf,0xc7,0xff,0xff,0xff};" Digit[2]=Head+"0xff,0xff,0xff,0xc3,0x99,0x9f,0x9f,0xcf,0xe7,0xf3,0xf9,0xf9,0x81,0xff,0xff,0xff};" Digit[3]=Head+"0xff,0xff,0xff,0xc3,0x99,0x9f,0x9f,0xc7,0x9f,0x9f,0x9f,0x99,0xc3,0xff,0xff,0xff};" Digit[4]=Head+"0xff,0xff,0xff,0xcf,0xcf,0xc7,0xc7,0xcb,0xcb,0xcd,0x81,0xcf,0x87,0xff,0xff,0xff};" Digit[5]=Head+"0xff,0xff,0xff,0x81,0xf9,0xf9,0xf9,0xc1,0x9f,0x9f,0x9f,0x99,0xc3,0xff,0xff,0xff};" Digit[6]=Head+"0xff,0xff,0xff,0xc7,0xf3,0xf9,0xf9,0xc1,0x99,0x99,0x99,0x99,0xc3,0xff,0xff,0xff};" Digit[7]=Head+"0xff,0xff,0xff,0x81,0x99,0x9f,0x9f,0xcf,0xcf,0xe7,0xe7,0xf3,0xf3,0xff,0xff,0xff};" Digit[8]=Head+"0xff,0xff,0xff,0xc3,0x99,0x99,0x99,0xc3,0x99,0x99,0x99,0x99,0xc3,0xff,0xff,0xff};" Digit[9]=Head+"0xff,0xff,0xff,0xc3,0x99,0x99,0x99,0x99,0x83,0x9f,0x9f,0xcf,0xe3,0xff,0xff,0xff};" for (Count = 0; Count < val.length; Count++) { dig= val.substring (Count, Count+1) setDigit (dig, PicSize) } } function setDigit (Dig, PicSize) { // this function to overcome a bug if (Dig=="0") { document.write ("<IMG SRC='JavaScript:Digit[0]'" + PicSize) } else if (Dig=="1") { document.write ("<IMG SRC='JavaScript:Digit[1]'" + PicSize) } else if (Dig=="2") { document.write ("<IMG SRC='JavaScript:Digit[2]'" + PicSize) } else if (Dig=="3") { document.write ("<IMG SRC='JavaScript:Digit[3]'" + PicSize) } else if (Dig=="4") { document.write ("<IMG SRC='JavaScript:Digit[4]'" + PicSize) } else if (Dig=="5") { document.write ("<IMG SRC='JavaScript:Digit[5]'" + PicSize) } else if (Dig=="6") { document.write ("<IMG SRC='JavaScript:Digit[6]'" + PicSize) } else if (Dig=="7") { document.write ("<IMG SRC='JavaScript:Digit[7]'" + PicSize) } else if (Dig=="8") { document.write ("<IMG SRC='JavaScript:Digit[8]'" + PicSize) } else if (Dig=="9") { document.write ("<IMG SRC='JavaScript:Digit[9]'" + PicSize) } } function nextRandomNumber () { var Hi = this.seed / this.Q; var Lo = this.seed % this.Q; var Test = this.A * Lo - this.R * Hi; if (Test > 0) this.seed = Test else this.seed = Test + this.M; return (this.seed * this.oneOverM); } function randomNumberGenerator() { var D = new Date(); this.seed = 2345678901 + (D.getSeconds() * 0xFFFFFF) + (D.getMinutes() * 0xFFFF); this.A = 48271; this.M = 2147483647; this.Q = this.M / this.A; this.R = this.M % this.A; this.oneOverM = 1.0 / this.M; this.next = nextRandomNumber; } </SCRIPT> </HEAD> <BODY> A whopping <SCRIPT>setHits();</SCRIPT> people have visited this page since tea-time yesterday. Click Reload to see the number magically change. </BODY> </HTML>

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file: /Techref/language/JAVA/SCRIPT/xbmsample.htm, 6KB, , updated: 2012/12/7 08:19, local time: 2024/11/14 17:38,

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