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Click on the ReDraw button and the bars in the graph are redrawn randomly. The total is calculated on the top. I used styles in conjunction with a JavaScript function that sets the height of the red single cell tables to a random amount anywhere between 1 pixel and 300 pixels. Use JavaScript to dynamically generate a bar chart

Label: Random Bar Chart

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<STYLE type=text/css>TD.blank {
	WIDTH: 66px; HEIGHT: 30px
}
TD.set {
	WIDTH: 108px; HEIGHT: 30px
}
TD.total {
	WIDTH: 108px; HEIGHT: 30px
}
TD.numbers {
	VERTICAL-ALIGN: bottom; WIDTH: 72px; HEIGHT: 50px; TEXT-ALIGN: right
}
TD.values {
	VERTICAL-ALIGN: bottom; WIDTH: 90px; HEIGHT: 297px; TEXT-ALIGN: center
}
TD.bars {
	WIDTH: 72px; HEIGHT: 30px; BACKGROUND-COLOR: #ffffff
}
TD.days {
	FONT-SIZE: 16px; VERTICAL-ALIGN: bottom; WIDTH: 90px; FONT-FAMILY: "arial"; HEIGHT: 24px; TEXT-ALIGN: center
}
</STYLE>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

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<SCRIPT language=javascript type=text/javascript>
<!--
var ids = new Array("b1","b2","b3","b4","b5","b6","b7");
function graphIt() {
    var t = 0;
    for( i=0; i<ids.length; i++ ) {
        num = Math.floor(Math.random() * 300);
	document.getElementById(ids[i]).style.backgroundColor="#ff0040";
        document.getElementById(ids[i]).style.height=num; 
        t+=num;
    }
    document.getElementById("total").innerHTML = t;
}

    
-->
</SCRIPT>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

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<TABLE cellSpacing=0 cellPadding=3 border=0>
  <TBODY>
  <TR>
    <TD class=blank></TD>
    <TD class=set><INPUT style="BACKGROUND-COLOR: #c0c0c0" onclick=graphIt() type=button value=ReDraw td <> 

    <TD class=total id=sum><B>Total: <SPAN 
id=total></SPAN></B></TD></TR></TBODY></TABLE>
<TABLE cellSpacing=0 cellPadding=0 border=0><!-- main table -->
  <TBODY>
  <TR>
    <TD><!-- beginning of left side -->

      <TABLE cellSpacing=0 cellPadding=0 border=0>
        <TBODY>
        <TR>
          <TD class=numbers>250 _</TD></TR>
        <TR>
          <TD class=numbers>200 _</TD></TR>
        <TR>
          <TD class=numbers>150 _</TD></TR>

        <TR>
          <TD class=numbers>100 _</TD></TR>
        <TR>
          <TD class=numbers>50 _</TD></TR>
        <TR>
          <TD class=numbers>0 _</TD></TR></TBODY></TABLE></TD><!-- end of left side -->
    <TD vAlign=top><!-- beginning of right side, the chart -->

      <TABLE style="BORDER-COLLAPSE: collapse" borderColor=#000000 cellSpacing=0 
      cellPadding=0 border=1>
        <TBODY>
        <TR>
          <TD>
            <SCRIPT language=javascript type=text/javascript>
	<!--
	var txt = "";
	txt += "	<table cellpadding=\"0\" cellspacing=\"0\" border=\"0\">\r      <tr>";	
	for( i = 1; i <= 7; i++ ) {
	    txt += "            <td class=\"values\"><table cellpadding=\"0\" cellspacing=\"0\" border=\"0\"><tr><td id=\"b" + i + "\" class=\"bars\"><\/td><\/tr><\/table><\/td>";
	}
        txt += "          <\/tr>\r        <\/table>";
	document.write(txt);
	-->
	</SCRIPT>
          </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<TABLE cellSpacing=0 cellPadding=0 border=0>
  <TBODY>
  <TR>

    <TD width=72></TD>
    <TD class=days>Sunday</TD>
    <TD class=days>Monday</TD>
    <TD class=days>Tuesday</TD>
    <TD class=days>Wednesday</TD>
    <TD class=days>Thursday</TD>

    <TD class=days>Friday</TD>
    <TD class=days>Saturday</TD></TR></TBODY></TABLE>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

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30/01/2007
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4,657
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JavaScript Random Bar Chart

1/5 2 votes / 4,657 previews / 0 comment 30/01/2007 Click on the ReDraw button and the bars in the graph are redrawn randomly. The to...JavaScript Random Bar Chart - Random Bar Chart

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Random Bar Chart

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