// Set onclick and onblur for txtFrom 
txtFrom         = document.getElementById('txtFrom_blog_940x300_20100405')
txtFrom.onclick = function() { if(this.value=='Type City Here'){this.value = ''} };
txtFrom.onblur  = function() { if(this.value== ''){this.value = 'Type City Here'} };
// Set onclick and onblur for txtTo
txtTo           = document.getElementById('txtTo_blog_940x300_20100405')
txtTo.onclick   = function() { if(this.value=='Type City Here'){this.value = ''} };
txtTo.onblur    = function() { if(this.value== ''){this.value = 'Type City Here'} };

set();