function trim(s) {
    var i,j;
    for (i = 0; i < s.length && s.charAt(i) == " "; i++);
    for (j = s.length-1; j >= 0 && s.charAt(j) == " "; j--);
    if(i<=j)
      return s.substring(i, j+1);
    else
      return '';
}

function CheckValue(thisname, sourse_text) {
    var keyword_value = trim(thisname.value);
    if(keyword_value=='')
      thisname.value=sourse_text;
}
function HideValue(thisname, sourse_text) {
    var keyword_value = trim(thisname.value);
    if(keyword_value==sourse_text)
      thisname.value='';
}

function travelA( id ) {
	z=document.getElementById(id);
	var x=0;
	var y=0;
	do {
		x+=z.offsetLeft;
		y+=z.offsetTop;
	} while (z=z.offsetParent);
	window.scrollTo (x, y);
}