function setSize(img)
{
    var maxSize=140;
    var width=img.width;
    var height=img.height;
    max=width>height?width:height;
    if(max>maxSize)
    {
        img.width=width*maxSize/max;
        img.height=height*maxSize/max;
    }
}
function setSize2(img)
{
    maxWidth=600;
    var width=img.width;
    var height=img.height;
    if(width>maxWidth)
    {
        img.width=maxWidth;
        img.height=height*maxWidth/width;
    }
}
function setCss(value)
{
    for(var i=0;i<document.all.td.length;i++)
    {
        if(i==value)
        {
            document.all.td.item(i).background="../images/bg1.gif"
            document.all.td.item(i).style.color="#ffffff";
        }
        else
        {
            document.all.td.item(i).background="../images/bg2.gif"
            document.all.td.item(i).style.color="#000000";
        }
    }
    if(value==0)
    {
        document.all.divSupply.style.display="block";
        document.all.divDemand.style.display="none";
    }
    else
    {
        document.all.divSupply.style.display="none";
        document.all.divDemand.style.display="block";
    }
}
function openWin(url)
{
	window.open(url,'newwindow','');
}