var min=8;
var max=15;

function increaseFontSize() {
   var p = document.getElementsByTagName('span');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
      p[i].style.fontSize = s+"px"
   }
}
function decreaseFontSize() {
   var p = document.getElementsByTagName('span');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
   }   
}

function search()
{
var txtSearch=findID('txtSearch');
window.location.href="../search/search.aspx?srch=" + document.getElementById(txtSearch).value ;
}

function findID(ID)
{
var obsj;
var ret;
objs=document.getElementsByTagName("input");
for(var i=0;i<objs.length;i++)
if((objs[i].id).match(ID))
return objs[i].id;
}

function intro_change()
{
for(var ui=0;ui<200000;ui++)
{
}


//alert(document.getElementById('intro').style.backgroundPosition);
if(document.getElementById('intro').style.backgroundPosition=='center center')
document.getElementById('intro').style.backgroundPosition='top';
else
if(document.getElementById('intro').style.backgroundPosition=='top')
document.getElementById('intro').style.backgroundPosition='right';
else
if(document.getElementById('intro').style.backgroundPosition=='right')
document.getElementById('intro').style.backgroundPosition='left';
else
if(document.getElementById('intro').style.backgroundPosition=='left')
document.getElementById('intro').style.backgroundPosition='bottom';
else
document.getElementById('intro').style.backgroundPosition='center center';

}