function addLoadEvent(func)
{
var oldonload=window.onload;
if(typeof window.onload!='function')
	{
	window.onload=func;
	}
else
	{
	window.onload=function()
		{
		oldonload();
		func();
		}
	}
}

function prepareInputsForHints()
{
	var inputs=document.getElementsByTagName("input");
	for(var i=0;i<inputs.length;i++)
		{
		if(inputs[i].parentNode.getElementsByTagName("span")[0])
			{
			inputs[i].onfocus=function()
				{
				this.parentNode.getElementsByTagName("span")[0].style.display="inline";
				}
			inputs[i].onblur=function()
				{
				this.parentNode.getElementsByTagName("span")[0].style.display="none";
				}
			}
		}
	var selects=document.getElementsByTagName("select");
	for(var k=0;k<selects.length;k++)
		{
		if(selects[k].parentNode.getElementsByTagName("span")[0])
			{
			selects[k].onfocus=function()
				{
				this.parentNode.getElementsByTagName("span")[0].style.display="inline";
				}
			selects[k].onblur=function()
				{
				this.parentNode.getElementsByTagName("span")[0].style.display="none";
				}
			}
		}
}

addLoadEvent(prepareInputsForHints);